Headsets

For proper assembly. GENUINE REPLACEMENT PARTS Get back on the road with a genuine replacement headset. PRODUCT DETAILS - Explanation on the S.H.I.S. Can be found here: http://bicycleheadsets.com/ - Semi integrated threaded headset

Replacement headset bearings from FSA. - Compatible with most Trek MTB integrated headset systems - Sealed bearing for long life - Compatible with Knock Block Headsets