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STONE BCD110XB 5800 6800 9000 ROTOR曲柄竞赛TT变速双盘54T 40T
STONE BCD110XB 5800 6800 9000 ROTOR曲柄压缩爬坡变速双盘50T
STONE BCD110XB 5800 6800 9000 ROTOR曲柄压缩爬坡变速双盘46T
5800曲柄68009000变速双盘rotor
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曲柄ROTOR四爪变速双盘
rotor580068009000曲柄越野双盘
曲柄580068009000ROTOR变速双盘
曲柄580068009000双盘rotor
曲柄SHIMANO580068009000双盘