RL1 External Cup EC Threadless Headset SK-4 The outer material is made

The outer material is made of knitted cotton with an EVA foam base

Compatible with Cane Creek Interlok spacers

This Tail Light Mount is made to fit 50mm bolt on lights as well as clip on lights

R-clips and screws

RL1 External Cup EC Threadless Headset SK-4 The outer material is madeDescription Ritchey Fit external cup headsets offer all the precision engineering and renown reliability for which Ritchey headsets are known. Made with alloy cups, steel races, and retainer bearings, these workhorse headsets are designed for those builds where price matters and performance reigns supreme. Specs Size 1" 1 1 8" Material Cup & Crown Race Alloy Cups w Steel Races Alloy Cups w Steel Races Stack Height 28. 0mm 28. 0mm Headtube ID 30mm 34mm