Headsets

- Aheadset preload adjusting bolt

- Bearing Type: Cartridge - Weight: 125g - Crown Race: 40 - S.H.I.S. Lower: ZS56 - S.H.I.S. Upper: ZS44 - S.H.I.S. Stem Clamp Diameter: 28.6 Threadless

Made in the USA, BlingKits add a dash of style and color to any bike in an easy to manage package. - Includes a 3mm, 5mm,10mm,15mm headset spacer and integrated 5mm top cap - Includes 2x sets of anodized to match bottle cage bolts

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