Bicycle Components & Accessories
M:part Comp Threadless Headset 1 Inch - Black
Reliable sealed bearing headset for 1-1/8inch and 1Inch steerers. Steel frame cups for durability Hardened steel bearings Available for 1' and 1 1/8' headtubes Stack height: 37.6 mm Weight: 106 grams
https://www.bizrate.co.uk/bicyclecomponents_accessories/m-part-comp-threadless-headset-1-oid37003375828.html
