Ritchey Classic Headset - Exernal 1-1/8" Threadless EC34/28.6-EC34/30 Silver Width-68/73/83/100mm Tool screws through lever pivot

Tool screws through lever pivot to remove cover plates and hollow pivot bolt

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This chainring's tooth profile was developed specifically for Shimano's 12-speed Hyperglide+ chain

Ritchey Classic Headset - Exernal 1-1/8" Threadless EC34/28.6-EC34/30 Silver Width-68/73/83/100mm Tool screws through lever pivotRitchey Classic Headset Exernal 1 1 8" Threadless EC34 28. 6 EC34 30 Silver. The Classic Headset is the reliable workhorse of the Ritchey headset range. Available with the timeless high polish finish this smooth and reliable specimen features lightweight precision machined aluminum construction sealed cartridge bearings and comes packed with Ritchey Grease. A sealed design promises minimal penetration from the elements. The Classic Headset adds that