Description SRAM's most advanced bottom bracket gets even better. The 2011 BlackBox GXP uses ceramic bearings designed by Ceramic Speed of Denmark for dramatically reduced friction and weight savings compared to standard steel designs. New Gutterseal technology keeps out rain and road grime for an even longer service life and silky smooth performance mile after mile. The eye-catching Red anodized finish looks great too.
The BlackBox GXP Bottom Bracket Cups are specifically designed to compliment the Red crank but are also compatible with any SRAM GXP or Truvativ GXP crankset. Available in English or Italian Thread. 105g.
Articles A description of the different types of bottom brackets, the bearings for bike cranks.
You wanna go fast? Join the ceramic revolution!
An introduction to road bike cranksets.
