1 x Bicycle Rear Derailleur Hanger. Used to change the small flywheel into the large one to make the bicycle faster. For example, the 36t flywheel is replaced by the 42t flywheel. Main material: aluminum alloy.
CANSUCC Bicycle Frame Rear Derailleur Hanger Extender Road Bike Gear Tail Hook
CANSUCC Bicycle Frame Rear Derailleur Hanger Extender Road Bike Gear Tail Hooks
Rear Derailleur Hanger,MTB Road Bike Gear Hanger Rear Gear Mech Frame Tail Hook
CANSUCC Cycling Rear Derailleur Hanger Mountain Road Bike Tail Hook Extender
