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Wolf Tooth Premium Knock Block Headset Upper

Wolf Tooth Premium Knock Block Headset Upper
  • Color: Black
  • Color: Red
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Wolf Tooth Precision Headsets for Trek Knock Block are machined in the USA out of aircraft grade aluminum with superior sealing for protection against the elements. Available in a variety of colors to add some style to your bike. These upper headsets are for Trek frames with molded-in internal bearing cups.

- Designed to work with Trek's Knock Block system
- The top cap on these headsets have unique raised features that key to Knock Block compatible stems (made by Bontrager
- If spacers are needed, you will need to use special Knock Block compatible spacers with notch features
- This product is the upper headset only
- Lower headsets on bikes with Knock Block do not have any unique features. They are usually IS headsets which are available separately

Part Numbers

Option UPC MPN
Black 810006802689 IS41U-8MM-KNOCK-BLK
Red 810006802702 IS41U-8MM-KNOCK-RED