Ritchey WCS Logic Threadless Headset (Black) (1-1/8") (EC34/28.6) (EC34/30)
Ritchey WCS Logic Threadless Headset (Black) (1-1/8") (EC34/28.6) (EC34/30), Ritchey Logic WCS Headset. Features: Micro angular contact stainless steel sealed cartridge bearings (smaller upper, larger lower) CNC machined 7075 aluminum external cups, 30.0mm crown race, 34.0mm cup OD Specs: S H I S: EC34/28.6|EC34/30 Stack: 28.3mm Color: black Weight: 97g