Rear Derailleur RD-TZ31A 6/7 Speed Direct/Hanger Mount Derailleur for Mountain T
Rear Derailleur RD-TZ31-A 6/7 Speed Direct Mount/Hanger Mount Derailleur for Mountain Bike Kids Bike Tricycle Commuter Bike Cruiser Bike. 【MODEL】Tourney RD-TZ31A Direct Mount Rear Derailleur,Suitable for 6/7speed System.Maximum tooth count: 28T，Tooth capacity：34T.