Shimano RD-M640 Zee 10spd parts-headset - Full PU liner and

- Full PU liner and foam insulation blocks wind and cold

Durable Water Resistant finish sheds moisture

Quicker brake engagement with shorter free stroke

Special MTB gear teeth profile improves chain engagement and retention

Shimano RD-M640 Zee 10spd parts-headset - Full PU liner andZEE Rear Derailleur SHIMANO SHADOW RD+ 10 speed For aggressive gravity MTB riding on a budget, the ZEE rear derailleur offers reliable, precise shifting through the roughest terrain. FEATURES SHIMANO SHADOW RD+ Short cage MTB 10 speed stable system Low profile design Close Ratio 2 spec available * No mode converter Wide ratio spec for Free ride >11 32T Close ratio spec for DH <11 28T Direct Mount Rear Derailleur option Total capacity: 25T Weight: 275g