SRAM BB30/PF30 conversion bottom bracket Forged & machined heat-treated 7075 T6 Aluminum Enduro 2437 Drive /2237ER Non-Drive steel bearings For 68mm BB30 or PF30 Road frames Not for BBRight,BB386EVO, BB86, BB92 frames For SRAM/Truvativ/Quarq GXP/ISIS2 stee
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