Size:165mm/170mm/172.5mm/175mm 50-34t/52-36t/53-39t (need choose) series:DURA-ACE R9100 SERIES color:series colors thread five-way width (mm)_70:✔ compatible in the axis type_on the outside:✔ crank arm length (mm)_170:✔ ...
165 mm Y1VU98020 Left Hand Crank Arm Unit 167.5 mm Y1VU98030 Left Hand Crank Arm Unit 170 mm 1 Y1VU98040 Left Hand Crank Arm Unit 172.5 mm Y1VU98050 Left Hand Crank Arm Unit 175 mm Y1VU98060 Left Hand Crank Arm Unit 177.5 mm Y1VU98070 Left Hand Crank Arm Unit 180 mm 2 Y1VU...