Mountain Frames

If you’re like us, your bike needs will likely change by the day, week, month or year. Ogre will get you to your job during the week, then way out of town on the weekend. It even has the chops to handle a cross-country trek or nine. It’s not sluggish on pavement or gravel and can also hold its own on singletrack. Ogre is designed to be the ultimate steel utility vehicle. It relishes in those “take-the-long-way-home-and-find-some-beverages-along-the-way” sort of commutes. You can also haul enough crap on it that you don’t even have to go home if you don’t want to. For this year, we simplified Ogre a bit. We removed the canti studs, so it is now a disc brake-only beast. Now, before you start yelling at us about how the canti studs were the only reason you were even considering buying an Ogre and now we’ve left you contemplating your very existence in this ultimately-doomed universe, hear us out. Rim brake 29er rims — like the ones that you would need to have to make use of those canti studs in the first place — are becoming increasingly harder to find. We could have given you a feature that you’d end up not really being able to use in the future but what kind of monsters do you think we are? To quench your unquenchable thirst for rim brakes, check out the Troll. As far as other updates to the frame go, that about sums it up. Ogre still has everything else you’ve come to know and love: two water bottle mounts, four sets of three-pack bosses, mid- and low-blade fork eyelets, threaded holes for racks, fenders, and trailer mounting nuts, and a Rohloff OEM2 axle plate slot. It still features horizontal-slotted dropouts with Gnot-Boost spacing, a tweaked non-suspension corrected geometry, and a beefy tire clearance. It’s still fully compatible with both 29 x 2.5” and 27.5+ tires. In the complete bike version, we’ve opted to go with a 1x drivetrain and a flat handlebar. We typically try to avoid BS cliché terms like “Do-It-All” or “Swiss Army Knife of Bikes”, so we’ll just say that Ogre can probably handle most of the ideas that are bouncing around in your head.

We know full well that for many out there, the ultimate trail bike needs to possess the agility and responsiveness that comes with 27.5-inch wheels. We tend to agree, which is why developed the S-Works Stumpjumper 27.5. The frame-only option, in our eyes, represents the pinnacle of trail performance, and it lets you build your dream Stumpy exactly how you like it. Starting at the carbon layup, it features our highest-end FACT 11m for an ultra-lightweight, strong, and stiff construction. The carbon molding process also allowed us to revolutionize how you carry your trail essentials with the SWAT Door found at the down tube. This compartment will fit a tube, a tool, and pump without rattling or compromising the structural integrity of the frame. You'll also find an aggressive and super nimble geometry that complements 650b wheels and features ridiculously short chainstays, a roomy top tube, a low bottom bracket, a slacked out front end, and our proprietary Rx Trail Tune at the rear shock. This frame also includes a custom Ohlins STX rear shock with our venerable, easy-to-set-up AUTOSAG system. - FACT 11m carbon fiber Trail Chassis with Stumpjumper FSR full carbon rear end blends stiffness with light weight to form the pinnacle of efficiency, while fully enclosed cable routing and an integrated SWAT Door create exceptional handling and zero-hassle storage. - The custom Ohlins STX single-tube air shock at the rear features high- and low-speed compression, as well as low-speed rebound. You'll also find an extra-volume reservoir that allows for more oil, which results in more control and an ultra-plush ride quality.

Let's not kid ourselves—downhill is all about speed. And when it comes to squeezing every last ounce of fast out of a track, your machine needs to be just as fine-tuned as your skills. That's why we offer our legendary, World-Cup-proven S-Works Demo 8 as a frameset. It's constructed from our finest carbon fiber, FACT 11m, for unparalleled stiffness and strength. Meanwhile, it's been built aboard our ultra-capable S3 27.5 Geometry to ensure a roomy top tube for added control, ultra-short, nimble chainstays, a low bottom bracket that keeps you feeling planted, and a slack front end that provides the utmost in responsive handling at speed. For suspension, this Demo features 200mm of travel delivered via a game-changing custom Ohlins TTX rear shock with both high- and low-speed compression adjust. Altogether, it's a blank canvas of pure performance and potential speed. Build it how you want it, and race it like you mean it. - The frame features a full FACT 11m carbon fiber construction for low weight and heightened levels of strength and stiffness, which is amplified by its asymmetrical frame design that still leaves plenty of access. This has also been paired with our proven S3 Geometry that increases maneuverability and responsiveness, while the 200mm of travel at the rear makes the bike capable of taking on the biggest of hits in stride. - Custom Ohlins rear shock delivers unparalleled DH performance. It offers high/low speed compression adjust that stands independent of the rebound adjust, enabling you to fine-tune the shock for the track at hand. It's 200mm of coil-sprung travel that stands without rival, and you won't find anywhere else. - Thomson alloy seatpost features one of the most durable constructions out there, without coming at the expense of a high overall weight.

You like gettin’ rowdy, we like gettin’ rowdy, so we figured, “Why not create a bike that lets us do the thing we all love most?” Well, that’s exactly what we did with the Enduro. Its playful and nimble 27.5-inch wheels and modern frame have been purpose-built to make short work of the rockiest, gnarliest, and steepest trails, while still being able to climb well enough to get you there. Witness the sickness. Our quest was to create the perfect long-travel trail bike, and it all began with a close look at the geometry. Basically, we modernized it— slacking out the front end, lengthening the top tube, shortening the chainstays, and lowering the bottom bracket. All of this together makes the bike truly feel glued to the ground, and the platform is more responsive and capable than ever. We then added some crucial bits to make your ride, well, better. We're talking stuff like integrated storage with a SWAT Door at the down tube, a triumphant return to a threaded bottom bracket, and internal cable routing with guides that make cabling super easy. And to keep the weight down, this S-Works frame is constructed from our top-tier FACT IS-X 11m carbon fiber. To guarantee high degrees of "shredability," this material is greeted by 170mm of plush front and rear travel, plus a geometry that can be "adjusted" via a shock extension with a "low/high" setting. To get you started on your way to complete dream build status, this frame includes a FOX Factory X2 Air (216x57mm) rear shock with 170mm of travel. - The frame's FACT IS-X 11m carbon fiber construction stands as the pinnacle of lightweight, efficient, and tough trail performance. It's been built off our 27.5 Geometry in order to provide an aggressive, well-rounded ride. And with internal Command Post IR routing, a return to a threaded bottom bracket, and an integrated SWAT Door at the down tube, you get a bike that's clean, dependable, and ready for anything that the trail has to offer. - The custom FOX Factory X2 air shock at the rear features high- and low-speed compression, as well as low-speed rebound. You'll also find an extra-volume reservoir that allows for more oil, which results in more control and an ultra-plush ride quality.

The S-Works Epic is the fastest XC rig on the planet—a bike with more World Champ titles, Olympic medals, and Cape Epic wins than you can count. And now, we’re offering the S-Works Epic in a limited-edition, Troy Lee Designs frame and fork combination. Head to toe, this rig looks fast. Of course, countless race wins around the world testify to how damn fast the S-Works Epic truly is, but you know, it never hurts to look the part. At the heart of it all is the S-Works FACT 12m carbon fiber frame—a chassis that offers the best combination of stiffness, strength, and light overall weight available. This bike, however, isn’t merely fast, it’s also one of the most capable cross-country machines on the World Cup circuit, with a geometry that’s designed to let you tackle the most technical courses at speed, with complete control. Speaking of speed and control, the TLD-edition frame sports 100mm of insanely efficient front and rear suspension. That efficiency comes courtesy of the ultralight RockShox SID World Cup fork and Brain 2.0 rear shock. The unique inertia valve in both the front and rear suspension help the bike stay firm and fast when the trail is smooth and then automatically become plush (and even faster) when the trail suddenly fills with rocks and roots. Brain-equipped suspension is, quite simply, suspension made smart. And since this is the TLD-edition we’re talking about, we also gave that RockShox SID World Cup fork and Micro Brain rear shock matching Troy Lee graphics. - S-Works FACT 12m carbon fiber frame is the best combination of stiffness, strength, and light overall weight, resulting in the utmost efficiency and speed. Meanwhile, the new geometry, RockShox Brain shock, and 100mm of travel, make the Epic the best handling, fastest XC bike you've ever been on. - Custom Micro Brain shock offers easy tuning and unrivaled efficiency - Our custom RockShox SID WC fork with Brain features a full-carbon upper, top-adjust Brain Fade, and a custom offset, making it the perfect match to the new Epic.

Karate Monkey is a highly-versatile trail bike that plays the part of 29er and 27.5+ equally well. Multipurpose Hardtail Mountain Bike Karate Monkey delivers a resilient, lively ride on all sorts of gnarly terrain. Its frame is a highly-versatile canvas for whatever dirty masterpiece your brain cooks up. According to our computing machine (Thor) it can be set up in approximately 487 different configurations. Originally designed as a 29er (and the frame that helped spark the 29" wheel movement), the latest Karate Monkey is designed to perform just as admirably as a 27.5+ rig as well. This allows you to pick your poison — provided your poison is having a really great time while permanently donning a maniacal grin, of course. - Modern trail standards: dropper post compatibility, 44mm headtube, Gnot-Boost rear spacing, thru-axles, suspension-corrected fork - Compatibility with most mountain bike standards makes it the perfect parts bin bike (no rim brakes allowed, though) - Clearance for 29 x 2.5 or 27.5 x 3 tires

The Wednesday is Surly's all-terrain fat bike frame. The frame features trail-ready geometry, 4.6-inches of tire clearance, provides lots of cargo carrying capabilities and is suspension corrected for use with a 100mm suspension fork (sold separately). - 100% Surly 4130 CroMoly steel with 44mm headtube and internal dropper post cable routing - Frame is ED Coated for increased life expectancy - 1-1/8" straight steerer fork, 4130 CroMoly - 100mm threaded bottom bracket shell - Universal cast dropouts accommodate thru-axle or quick-release standards

Santa Cruz's 5010 CC is more than just a bike—it's a well crafted, trail-slaying tool. It features VPP suspension providing 130mm of ground-gripping action to tackle the steeps, the drops, the bumps, and the curves. A low bottom bracket and short chainstays translate into a snappy ride, while CC carbon construction makes the 5010 as light and stiff as possible. Throw in a 142mm rear axle, forged upper and lower links, double-sealed pivots, lower link grease ports, and angular contact bearings for lateral stiffness that will have you howling through the corners. It's topped off with ISCG-05 tabs and internal cable routing for your dropper post.

Krampus is a dedicated 29+ trail bike that can go over, off of, or through just about anything in its path. Breaking the Mold with a 29er Bike As the first "plus" bike to hit the market, Krampus changed the way many people approach trail riding. It’s shown people the light of how high-volume, large-diameter tires can vastly improve the ride experience. It’s also done a bang-up job dispelling the myth that big tires make you slow. Krampus is kind of like the opposite of a mullet: long in the front and short in the rear. With a long toptube and compact chainstays, it takes trail-shredding abilities to the next level. A mullet may be business in the front, party in the back but Krampus makes partying its business. "Lean back, hang on, and ride that wild horse." -Thor - Modern trail standards: dropper post compatibility, 44mm headtube, Gnot-Boost rear spacing, thru-axles, suspension corrected fork - Compatibility with most mountain bike standards makes it the perfect parts bin bike (no rim brakes allowed, though) - Clearance for 29 x 3" tires

The Karate Monkey frame features updated, progressive trail geometry, a new tubeset, and Surly’s Gnot-Boost rear dropout system to support multiple drivetrain and wheel size configurations. - 100% Surly 4130 chromoly steel frame and fork; double-butted main triangle and 44mm headtube - Tubeset uses the same trumpet tubes found on Instigator 2.0 frame - Adjustable rear dropouts with 145mm Gnot-Boost spacing works with 142 x 12, 148 x 12mm, and 135mm w/ 10/12 washer - Internal dropper seatpost routing - 30.9mm seat tube ID - Clearance for 29 x 2.55 or 27.5 x 3 tires

It's hard to top the history and beauty behind a Troy Lee Designs paintjob, and what's on display on this limited-edition, EVO Stumpjumper chassis pairs slack, long and low geometry with 140mm of deep and progressive suspension. It's a featherweight brawler. One frame, any trail The innovative sidearm frame design makes a lighter, better-handling bike. By directly connecting all three mounting points of the rear-end and shock to the frame, we've increased both stiffness and performance over bumps. Evo is for shredders Stumpy EVOs aren't "normal" trail bikes—they're built to get gnarly, simple as that. With their slacked-out front-end and longer top tube, EVO models possess exceptional front-end traction that begs you to boost every feature on the trail. It's rowdy time. The perfect foundation - Limited-edition, EVO carbon chassis is stiff, precise, and rowdy. - Built to shred with 29er EVO geometry and 140mm of rear suspension. - FOX FLOAT DHX2 Performance Elite rear shock boasts stellar big-hit performance.

Off-road touring can be a zesty enterprise, but it’s not without its perils. Bicycles are simple machines that are extremely efficient, but all simple machines carry along with them the chance of breaking down. This efficiency can get you in trouble if your bike decides to break down far away from the comforts of your parent’s basement. If you’re going to ride your bicycles where no one can see, you better take gear that’s up to the task. Troll is up to the task. Surly's Troll was once a simple mountain bike frame with a few extras that made it nice for touring. The Troll has evolved into a frame that has been pushed deeper into the category of off-road touring. Its geometry is no longer suspension corrected, which gives it more room for a larger frame bag. The chainstay yoke has been redesigned to be fully compatible with 26+ tires and comes with the always-comfy Jones Loop bar. The dropouts still allow you to run disc brakes, fenders, a Rohloff hub, and racks simultaneously. It also comes with more braze-ons than you thought possible – there are four triple bottle mounts on the fork alone (don’t get excited, you can only run one Anything Cage per fork leg), as well as two more triple bottle mounts on the down tube. Troll is a bike that has one purpose – and that purpose is to carry you as far away from society as possible.

DH is all about speed—that's true whether your aim is to climb the podium or to simply bring home all the bragging rights after a day at the park. If speed is what you're after, the Demo Race 29 is your sled. Everything about this bike is designed to get you from zero to Mach 10: a new frame design, improved kinematics, better braking, big wheels, and all today's newest fancy bits. It's time to get rowdy. We've refined the Demo's kinematics and suspension design. We had one overriding goal—improve the bike's ability to carry momentum, no matter how technical the terrain. More momentum equals more speed, after all. The revised axle path reduces hang-up on square-edged bumps and that, in turn, transfers more energy to the suspension and less to you. While we were at it, we also improved the Demo's suspension performance under braking and added a bit more anti-squat to improve its pedaling performance. Bottom line, the new Demo rolls faster through chunky terrain than its predecessor. To get your dream build started off right, the frame includes an Öhlins TTX rear shock with 200mm of travel, a 225x75 Trunnion mount, and high- and low-speed compression adjust. Finally, no DH rig would be complete without a Thomson seatpost, so yeah, we threw that in there, too. - M5 alloy construction works in harmony with our Style-Specific DH Geometry to create the ultimate race machine. The design is compact in order increase maneuverability and responsiveness, while the 200mm of travel at the rear makes the bike capable of taking big hits in stride. And to fill out all of the details that make the difference on race day, we’ve included an ISCG ‘05 mount for chain guides and all the bits to make it easy to work on. - Custom Ohlins TTX Trunnion rear shock delivers unparalleled DH performance. It offers high-/low-speed compression adjust that stands independent of the rebound adjust, enabling you to fine-tune the shock for the track at hand. It has 200mm of coil-sprung travel that stands without rival, and you won't find it anywhere else. - The Body Geometry Henge DH saddle features our proven Body Geometry design, and implements a cutout on the underside for added rear tire clearance.

The Rebel Yell of the middle child. Fed a steady diet of super-tech climbs, the SB130 was built to crush the biggest terrain. No trail is "too" anything. Point it up or down. Enter a last-minute enduro just for the fun of it. We like to say no one bike can rule it all. But the SB130? It's one bike that rules. - At the heart of the SB130 suspension design is our patented Switch Infinity suspension system. - The SB130 is built to tackle any type of terrain. From buffed out singletrack, to rugged EWS racecourses, it can hold its own on a huck. - The SB130 has progressive trail-inspired geometry. We took what we learned from the SB5 and our Factory team riders and incorporated it here. - A patent-pending wishbone shock extender was developed to change the leverage ratio and shock clearance. - No more gunk on your water bottle mouthpiece, as the mount is now inside the front triangle. - An integrated headset allows for a lower overall stack height and cleaner carbon layup. - Internally tunneled routing allows for clean lines, ease of maintenance, and less shifting of housing during suspension movement. - Switch Infinity utilizes a patented translating pivot that switches direction as the bike moves through its travel. - Our linear system built by FOX is able to achieve infinite tunability and durability, which cannot be matched by traditional link designs. - Decoupling of the chain forces allows the suspension to work more efficiently to absorb impacts. - The ability to manipulate the leverage ratio without affecting the anti-squat characteristics is unique to Switch Infinity suspension. - C-Series frames utilize small changes to the carbon fiber layup to offer a more aggressively priced carbon frame.

There's not much that matches the feeling of powering up a pitch on a featherweight bike, and we designed the new S-Works Epic Hardtail frame with this in mind. It's less than 900 grams, exceptionally stiff, and it features a Rider First Engineered design. It's the perfect jumping off point to begin creating your dream build. Over the last decade, cross country racing has evolved into a completely different animal—the courses are rowdier, more technical, and overall, they're inherently different. Because of this, we realized that the best bike for the job needs to not only be lightweight and stiff but also be able to descend and climb with equal prowess. Determining the best geometry was the easier of the two, as we took our current XC race geo and added some trail DNA to the mix. This equates to a longer top tube, a shortened head tube, and a slacked-out front end, the result of which is a tremendous increase in downhill stability, plus a wider fit range. And just as importantly, this doesn't require any sacrifice of climbing proficiency. The weight aspect was more complicated, though. We were posed with the question, "How do you take weight out of something that's already so light?" But the answer was relatively obvious: you get the best mountain bike engineers together in one room and let the magic come out. Up until now, there were two ways to lighten up a frame—use less of the same grade of carbon or use less of a higher-grade carbon. Option one is never a viable solution as it sacrifices stiffness and strength, two attributes that shouldn't be tampered with. And while we did end up using option two, we weren't content with the amount of weight we could cut out by just using a different grade of carbon. So how else do you cut weight? Well, we began looking at our layup schedules to see if they could be improved, which shed light on a new discovery—layup inefficiencies. Beginning with our Rider-First Engineered frame technology, each size Epic Hardtail is specifically tailored to size—every carbon layup and tube are exclusively selected based upon hundreds of hours of collected ride data. What does this mean for you? It not only creates the optimal balance of rigidity, weight, and responsiveness across every frame size, but it led us to the discovery of how to save weight through the studying of the layup. Through extensive layup studies, we made the discovery that, by further controlling the construction and layup schedules, we could drastically decrease weight, all while maintaining the ride characteristics that you'd expect from a top-level XC race bike. With this discovery, each frame now features complex cut carbon plys that allow difficult junctions to be covered with less overlap. And while this does complicate the carbon frame puzzle by adding more pieces to the mix, it allows us to design and place them more intelligently. The result of this is a lighter frame, stronger junctions, and a drastic increase in stiffness. We then took the weight savings one step further by using Japanese military ballistic-grade carbon, which we now call 12m, to create the lightest mountain bike we've ever made. How much lighter of a frame, you ask? Less than 900 grams for a size Large frame—the same weight as a full 24oz Purist water bottle. - To provide the optimal blend of stiffness, crazy light weight, and strength, we constructed the frame from our S-Works FACT 12m carbon fiber. And when combined with our XC 29 Geometry, this Epic is guaranteed to deliver uncompromising, blistering speed and agile handling come race day—no matter the course.

If you’re looking for a frame that’s snappy, confident, and happiest on trails that make other hardtails cry, you’ve come to the right place. - The Fuse’s M4 aluminum frame is loaded with smart touches. - Wide-diameter down tube boosts stiffness. - Low-slung top tube gives you the clearance to throw the bike around on tight trails. - Adjustable dropouts let you run the Fuse geared or single-speed. - Tune the Fuse to your trails by changing chainstay length as much as 15 millimeters.

Ice Cream Truck is the bike we reach for when we don’t really know what the trail has in store. From log and root-covered ribbons of twisty singletrack to miles of powdery snow or sandy beaches, Ice Cream Truck can handle it all. Hell, you could probably even hop over a grizzly if the situation arises. Probably. While we could certainly throw out terms like "confidence-inspiring" and "traction-laden" to describe Ice Cream Truck, those phrases are mostly garbage, so we’re not going to do that. We’re not here to inspire you, and we didn’t laden it with anything. What we did do was design a monolith of a trail bike that doesn’t care what’s in front of it. - Long toptube, short seatstays, and a 68-degree headtube angle makes it tight and maneuverable on fast, technical terrain - Modern trail bike standards like stealth dropper post routing, 44mm headtube, and thru-axles - Clearance for a full 26 x 5 tire on 100mm rims

You lie in bed at night and dream of a bike that can really do it all—climb the tallest backcountry passes with ease, tear through the rootiest, rockiest tracks, and slingshot out of corners when you get on the gas. Wake up meet Santa Cruz's Hightower CC Frameset. It's CC-carbon construction is as light, responsive, and strong as it gets, while the 135mm VPP suspension, compliments of the RockShox Monarch rear shock, annihilates any and all terrain that gets in your way. These combine to give the Hightower the versatility to deal with whatever appears on the horizon and seamlessly adapt to the trails and style you ride, from the rocky peaks of the Dolomites to the rain forest of British Columbia. The headtube angle and longer reach combine to create a dreadnought that can roll over anything that dare lay in your path.

Lowside is the bike that gets you across town for a quick rip on singletrack, then over to the bar for a night out. Lowside is like the grownup version of the bike you rode when you were a kid and still had hopes and dreams and some semblance of ambition. It’s just as happy riding singletrack as it is parked outside your favorite drinking establishment. Lowside is a singlespeed. Singlespeeding has been a part of Surly’s DNA since day one when we launched the 1x1 Rat Ride. After a lot of Homie Fall Fests and more feats of strength than we can recall, we decided to discontinue it a couple years back. Lowside picks up right where the 1x1 left off. Some have dubbed the Lowside the ultimate pub cruiser. - Modern trail standards: dropper post compatibility, 44mm headtube, Gnot-Boost rear spacing, thru-axles - Compatibility with most mountain bike standards makes it the perfect parts bin bike (no rim brakes allowed though) - Clearance for 26 x 3 or 27.5 x 2.8 tires

The Big Fat Dummy is a long tail cargo bike that took a few too many doses of growth hormones. At first glance, you might say that Surly just put bigger tires on a Big Dummy. But if you said that, you'd actually be very wrong so just… don't. Think of Big Fat Dummy as more of a second or third cousin to Big Dummy rather than a brother. They share some of the same DNA and look sort of similar, but they're two very different bikes and really only interact when they both reach for the potato salad spoon at that family reunion that no one really wants to be at anyway. Now that that's out of the way, let's get down to the nitty gritty of what makes this hulking beast of a bike tick. Surly's goal with designing a cargo bike around fat tires was to create the most stable, stiff, and traction-laden ride possible while hauling a ton of stuff. Big Fat Dummy has a longer toptube and slacker headtube than its more svelt cousin giving it a nice, predictable, and stable ride. They also used thinner, lighter tubing to construct its cargo area so while it's an overall burlier bike, there's not much difference in weight. Big Fat Dummy accepts either 10mm or 12mm axles in the rear with a spacing of 190/197mm. That big ‘ol spacing equates to one thing: tire clearance for days. Big Fat Dummy maxes out at a massive 26 x 5.25" tire.* While that large of a tire provides the most traction and stability a bike can possibly offer, it's also a lot of rubber to push and might not be for everybody. Luckily, Big Fat Dummy is also a blast to ride with 3" tires too. It uses the same 100mm suspension-corrected fork as the Wednesday, meaning if you want to add a little squishy-squishy to your ride, you can throw a Bluto on and let ‘er rip. If you intend to carry a passenger on your Big Fat Dummy, Surly requires use of their Dummy Rail Collars. These provide a secondary retention system for the rack, as well as stiffen the rack system. In addition, a stoker handlebar set up, found on tandem bicycles, is recommended as well. Make sure to check with seat post manufacturer for stoker handlebar compatibility. All Big Fat Dummy framesets and bikes ship with a Dummy deck, rails, bags, and the aforementioned Dummy Rail Collars so you can immediately start hauling cargo — human or otherwise. Big Fat Dummy is ready and willing to carry all sorts of crap — literally. It's already in use on an organic farm in Ecuador so it's likely that it's hauled some form of manure by now. *Using a 26 x 5.25" tire will cause some drivetrain limitations. For all the nuts and bolts of compatibility read Surly's blog on the subject.

Would you describe your favorite trails as "rowdy" and "gnarly?" Then the designers at GT had you in mind when they built the Sanction Frame. With GT's COR Enduro design aluminum for efficient pedaling, and their optimized blend of DH and pedal-friendly geometry, plus 160mm of GT's I-Drive rear travel, the Sanction is fully capable of going up and down, as well as over and off pretty much anything. And, its Fox Float rear shock offers totally controllable suspension thanks to its adjustable rebound and remote lockout. With this fine frame, you can build one bike to rule them all!

Off-road touring can be a zesty enterprise, but it's not without its perils. Bicycles are simple machines that are extremely efficient, but all simple machines carry along with them the chance of breaking down. This efficiency can get you in trouble if your bike decides to break down far away from the comforts of your parent's basement. If you’re going to ride your bicycles where no one can see, you better take gear that's up to the task. Troll is up to the task. Surly's Troll was once a simple mountain bike frame with a few extras that made it nice for touring. The Troll has evolved into a frame that has been pushed deeper into the category of off-road touring. Its geometry is no longer suspension corrected, which gives it more room for a larger frame bag. Surly also adorned this frame with their Gnot-Boost spacing, allowing you to use any mountain bike hub whether it be 135mm QR, 12 x 142mm thru-axle, or 12 x 148mm Boost hub. The chainstay yoke has been redesigned to be fully compatible with 26+ tires and the complete bike comes with the always-comfy Surly Moloko Bar. The dropouts still allow you to run disc brakes, fenders, a Rohloff hub, and racks simultaneously. It also comes with more braze-ons than you thought possible – there are four triple bottle mounts on the fork alone (don't get excited, you can only run one Anything Cage per fork leg), as well as two more triple bottle mounts on the downtube. Troll is a bike that has one purpose – and that purpose is to carry you as far away from society as possible. Man has known for eons the call of the indifferent forest. The inexorable march of time, and dumb things like cell phones, have dulled our senses and made us afraid. Reclaim your animalistic tendencies atop Man's greatest invention.

Wednesday is a great all-around fat bike that has the soul of a trail bike and mind of a touring bike Wednesday sits in the middle of our Trail category, but don’t let that fool you into thinking that’s its only use. With Wednesday, we borrowed elements from some of our Trail and Touring models to create a versatile fat bike that can truly handle anything you want to attempt. If you do an equal amount of off-road touring as you do hitting trails, Wednesday’s ability to play both parts equally will suit you well. Or, if you’re looking for a fat bike and don’t need the fattest tires on the market, Wednesday’s 26 x 4.6" tire clearance is just the ticket. Any day of the week’s a great day to ride a Wednesday. - Modern mountain standards: stealth dropper post routing, 44mm headtube, suspension correction, front and rear thru-axles - Full suite of useful braze-ons: front and rear racks, multiple sets of three-pack mounts, fenders - Full-forward, short chainstay position: 26 x 3.8 tires on 80mm rims; full-rearward, longer chainstay position: 26 x 4.6 tires on an 80mm rim

The ECR is Surly's answer to those times when you just need to escape to the woods for a while to get away from the humdrum of life. Those familiar with this steel mule know it’s designed around plus tires, previously of the 29” variety. A fully loaded 29+ bike is an excellent way to explore and get away for a while… if you’re of a certain stature that is. For smaller riders, it poses several challenges though. And no one wants new problems when they’re in the woods trying to escape old ones. To solve this, Surly redesigned the smaller sizes of the ECR to work with 27.5+ while the larger sizes are still equipped with 29+. All you medium specimens out there get your pick of the litter as they're offering that size in both options. Other updates to the ECR include and are limited to: Gnot-Boost rear spacing and a killer new beige paint job. It retains the abundant accessory mounts that we all know and love like Surly Trip Guide for brakes and derailleurs, fender, rack, and Bill/Ted eyelets, and a Rohloff torque arm slot. The 27.5+ sizes also feature two sets of Three-Pack bosses. You’ve got lots of options to bring all your “necessities” with you and still have room for excess baggage if you’ve got it.

Let's get something clear—the Stumpjumper EVO Alloy 27.5 isn't a "normal" trail bike. It's built to get gnarly, and there's no real way around that. It has a slacked-out front-end and a longer top tube, so the EVO has heavier steering and exceptional front-end traction that begs you to do cutties and boost every lip. And with the perfect blend of responsiveness and stability that 27.5-inch wheels are known for, you'll be shredding the gnarliest lines in no time. When the goin' gets rowdy, the rowdy get goin'. What exactly is the EVO for? EVO is for the shredders—the gnarliest trail riders who live for gravity riding. Big drops, huge kickers, rocks, roots—whatever you throw at it, the Stumpjumper EVO can handle it. EVO uses the same style-specific sizing that's featured on our Demo. This sizing lets you choose the bike that fits the way you ride—not just by the seat tube measurement like with most bikes—and it narrows things down to two sizes, S2 and S3. These are longer, lower, slacker, and have seat tube and head tube heights that allow you to choose the size that best suits your style and terrain. Our other design goal was simple—build the ultimate trail bike. One that feels telepathic. And it turns out that this feeling all comes down to stiffness. Think of it this way: when the frame's telling your hands one thing and your feet another, your brain gets confused with the imbalance and the bike feels unstable. In order to fix this, we had to get to work on dialing-in the materials and shapes. We continued down the suspension path with a custom Rx Trail Tune on both the fork and rear shock. Suspension performance is highly dependent on frame, wheel, and rider size, so we use our Rx Tune to get each bike to land in the middle of the adjustment spectrum, and this gives you the biggest possible range to fine-tune your ride. Another focal point of the tune was matching the suspension characteristics between wheel sizes—we developed a specific Rx Tune for each platform. So, no matter what wheel size you prefer, you'll get perfectly linear suspension. Steps were also taken to make this bike easy to live with. Threaded bottom brackets make a triumphant return, and we made room for up to a 3.0" tire. You're also free to run whatever aftermarket rear shock you want, since we're using standard metric shocks. And customization is furthered with a Flip Chip that lets you to dial-in your Stumpy to your riding style. Switch it from High to Low and it drops your bottom bracket 6mm and slackens the head tube by half-a-degree. Little details also jump out to surprise you, like a newly designed ribbed chainstay protector that makes chain slap a thing of the past and nearly silences the drivetrain. - With its M5 alloy frame, 27.5 Trail EVO geometry, and 150mm of travel, the Stumpjumper EVO Alloy has been purpose-built to shred the most gravity-defying trails. - FOX FLOAT DPX2 Performance has three modes—Open, Trail, and Firm—that control large compression adjustments on-the-fly.

If you’re looking to build the fastest, most capable enduro race bike, you can’t do better than the model that defines the very genre. The S-Works Enduro’s blissfully tackles the kind of terrain that chews up and spits out lesser bikes. Full-carbon linkage shaves 250 grams off the already ultra-light, carbon chassis. INCREDIBLY CAPABLE If the Enduro looks like its sibling, the Demo, it's because they share plenty of downhill DNA. The Enduro rolls fast on 29er hoops and boasts 170 millimeters of front and rear suspension courtesy of an all new-design that obliterates the biggest hits with ease. ASTONISHINGLY FAST...UP AND DOWN THE TRAIL Stomp on the pedals and the new Enduro accelerates far quicker than you're expect possible from a downhill bruiser. We pulled out all the engineering stops and made the Enduro an incredibly efficient pedaling machine. The end result? Less bobbing. More speed. - All-new design boasts 170 millimeters of suspension. - FOX FLOAT X2 Factory shock offers unrivaled big-hit control and on-the-fly adjustability. - Ingenious SWAT Door downtube storage system, threaded bottom bracket, and internal cable routing.

It's hard to top the history and beauty behind a Troy Lee Designs paintjob, and what's on display on this limited-edition, EVO Stumpjumper chassis pairs slack, long and low geometry with 150mm of deep and progressive suspension. It's a featherweight brawler. One frame, any trail The innovative sidearm frame design makes a lighter, better-handling bike. By directly connecting all three mounting points of the rear-end and shock to the frame, we've increased both stiffness and performance over bumps. Evo is for shredders Stumpy EVOs aren't "normal" trail bikes—they're built to get gnarly, simple as that. With their slacked-out front-end and longer top tube, EVO models possess exceptional front-end traction that begs you to boost every feature on the trail. It's rowdy time. The perfect foundation - Limited-edition, EVO carbon chassis is stiff, precise, and rowdy. - Built to shred with 27.5 Trail EVO geometry and bottomless-feeling rear suspension. - FOX FLOAT DHX2 Performance Elite rear shock boasts stellar big-hit performance.

The Surly Lowside is the bike that gets you across town for a quick rip on singletrack, then over to the bar for a night out. It’s the bike you turn to when you’re not entirely sure what the night has in store. It’s the bike to grab when you want to have just as much fun riding to the trail as you do on the trail, itself. Singlespeeding is an integral part of Surly’s DNA, and the Lowside continues the tradition, by taking a simpler approach to trail riding. - 100% Surly 4130 chromoly frame, main triangle is double-butted; 1 1/8" threadless chromoly fork - Singlespeed "specific" (derailleur hanger: yes; Trip Guides: no) - Dropper post routing - Gnot-Boost rear spacing - Front and rear thru-axles - 26 x 3" or 27.5 x 2.8" tire clearance

The Surly Pugsley may be the original fat bike, but this one is far from the original. Previously a great all-around fat bike, the Pugsley has been redesigned to be an ideal off-road touring and exploration rig. Surly lengthened the chainstays 12mm for stability when loaded and so your heels float effortlessly past panniers. The tweaked rear rack mounts on the dropouts let you center your rack over the wheel, despite the offset rear triangle. Those dropouts will take a 142 x 12mm thru axle if that's your schtick, but can also be used with 135 x 10mmm QR hubs with Surly's Adapter Washers. Pugsley brings back the 135mm-spaced offset fork, so you can run a front wheel with a spare cog or freewheel as a bail-out option to swap with the rear if your internally-geared hub freezes up in neutral or you smash your derailleur having too much fun. A plethora of three-pack mounts give you gear-hauling options aplenty, so go wild with your build. - 100% Surly 4130 chromoly frame, main triangle is double-butted; 1-1/8" threadless brazed chromoly fork - Four sets of Three-Pack Mounts (two on the fork, two on the downtube), a water bottle mount on the seat tube, and front and rear rack mounts - 142 x 12mm rear dropout (or 135 x 10mm QR with Surly 10/12 Adapter Washers) with Rohloff torque arm slot - 135mm-spaced fork with 17.5mm offset for wheel swappability - 26 x 4.8" tire clearance in frame (with drivetrain restrictions), 26 x 4.3" tire clearance in fork

Last we checked, "XC-style" racing on a mountain bike doesn't stop once you crest the climb. Crushing souls on the descent is more than half the fun. And a hell of a lot more than half the point. For racers who want to fly down as much as soar up, the SB100 is the bike we've always wanted to make. - The Switch Infinity was re-designed for 100mm of travel, it's lighter and tucks neatly behind the seat tube. Pretty rad. - The new frame designs accommodate a water bottle mount in the front triangle and allow space for longer dropper seat posts. - SB100 features genre-killing geometry, inspired by going fast downhill but balanced to provide uphill efficiency. - An integrated headset allows for a lower overall stack height and cleaner carbon layup. - Internally tunneled cable routing allows for clean lines and a quiet, rattle-free ride. - Switch Infinity utilizes a patented translating pivot that switches direction as the bike moves through its travel. - Our linear system built by FOX is able to achieve infinite tunability and durability, which cannot be matched by traditional link designs. - Better "decoupling" of the chain forces allows the suspension to work more efficiently to absorb impacts. - The ability to manipulate the leverage ratio without affecting the anti-squat characteristics is unique to Switch Infinity suspension - TURQ Series bikes are made with the highest quality carbon fiber available and offer the perfect balance of stiffness and compliance.