A B Y1NA24000 Chainring 24T-AM B 13 Y1NA26000 Chainring 26T-AK B Y1NA28000 Chainring 28T-AJ B Y1NA98020 Chainring 38T-AM B 14 Y1NA98030 Chainring 38T-AK B Y1NA98040 Chainring 40T-AJ B A: Same parts. 下载文档 收藏 分享 赏 0...