Sram's BlackBox labs turns out some of the most advanced bike products on the market. THe GXP ceramic bearings are no different. Ceramic bearings are lighter, harder and have a smoother surface than stainless steel bearings, this in turn gives you a faster, smoother rolling bearing that won't corrode or pit under adverse conditions.
- SRAM Black Box Ceramic GXP Bottom Bracket cups.
- Shorter threaded section for use with SRAM and TruVativ GXP road cranksets.
- Black Box GXP Ceramic Road
- Spindle Interface Type: GXP