Sram GXP English 68/73mm Bottom BracketGutter 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
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