The Kickr Power Trainer from Wahoo Fitness takes your indoor trainer workouts (and race-day outdoor warm-ups and downs) to an entirely new level. Its first trick is not relying on your rear wheel, which means no more tire and cassette wear - and never having to worry about flatting while warming up! This ingenious design makes for a smaller, more portable trainer, too, plus the Kickr folds for even easier transport/storage, and it even has a sturdy built-in carrying handle. Unfolded and in use, the Kickr is extremely stable thanks to heavy-duty construction, long legs and leveling feet. Riding feels super-smooth and just like cycling outdoors thanks to a heavy flywheel and carbon belt drive. Plus, you get accurate power measurement, controlled resistance and open third-party software options. The Wahoo Kickr Power Trainer is the world's first iPhone powered bike trainer, and it works out of the box with several software solutions, too. Your indoor cycling experience will never be the same!