Sram GXP English 68/73mm Bottom Bracket closeout Composite chain ring construction:

Composite chain ring construction:

Collecting cadence data has never been this easy

maintenance-free

Compatible with both road and mountain bike brakes

B-screw adjustment

Sram GXP English 68/73mm Bottom Bracket closeout Composite chain ring construction:Gutter Seal Technology drastically improves sealing against the elements while reducing seal drag. We've designed a fresh cup forging for a high end look. A new standard in external bearing performance. Gutter Seal Technology drastically improves sealing against the elements GXP's Gutter Seal design reduces friction Improved tool engagement Sealed cartridge bearings English or Italian threads