Hooks Bicycle Rear Derailleur Hanger Bicycle Rear Extender Tail Hook Extender Extension Hanger

Label:Yes Package Include:1pc Bicycle Rear Derailleur Hanger Size: 5.1*1.5*1 cm Color:Black, Red Recommended Torque Value:15-20N.m Material:Aluminum Zinc Zinc Zinc Zinc Alloy

Product application: compatible with mountain 40/42/46/50/52T, highway 34/36/40/42T and other flywheel expansion solutions. Features: -This product is used for rear derailleur extension, apply mountain freewheel 40/42/46/50/52T,etc.road 34/36/40/42T,etc. -Expand the flywheel speed change more smoothly. -2 colors available, give your mountain bike a little individuation. -Aluminum Zinc Zinc Zinc Zinc Alloy material, CNC workmanship, solid and firm, very durable. -Great accessory for cycling enthusiasts.