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Bicycle Tail Hook Extension Extender Bike Rear Derailleur Hanger Enlarging

£7.05

Improve Climbing Ability: Bike tail hook extension extender can relieve the spring tension of the rear derailleur and improve the climbing ability of the bike. Enlarging Flywheel Speed: Bicycle rear derailleur hanger amplifies the speed of the cassette for smoother changes, a great accessory for cyclists.

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