Mtb Bike Rear Derailleur Shifter 6/7/ 18/21 Speed Tz31A Derailleur for Shimano
Rear derailleur:6/7 speeds. Suitable for:Mountain Bike Folding Bike. Material:Aluminum alloy body + silent resin guide wheel. Compatible Chains:6-7-8 Speed. Number of teeth of guide wheel:11T/11T. Maximum teeth:11T.
Mtb Bike TZ31A Rear Derailleur Shifter 6/7/ 18/21 Speed Derailleur For SHIMANO
Rear derailleur:6/7 speeds. Item Including ：1 xSpeed Derailleur, no other accessoriesincluded. Suitable for:Mountain Bike Folding Bike. Material:Aluminum alloy body + silent resin guide wheel. Compatible Chains:6-7-8 Speed.