Zipp, 61903 Ceramic Bearing Upgrade Kit, 61903, Kit

Description

* ZIPP Ceramic Bearing Upgrade Kit - 61903 - Compatible with ZR1/ZM2 hubs, Cognition Rear hubs, Cognition/76 disc front hubs, 176 all rear hubs (incl. 2 ceramic bearings)* SRAM Model ID: HU-SPP-A0