Naroote Bicycle Rear Derailleur Hanger Extension, Bike Tail Hook Extender Rear Derailleur Hanger Hollow Style Mountain Road Bike Speed Change Frame Gear Tail Hook Extender

Naroote Bicycle Rear Derailleur Hanger Extension, Bike Tail Hook Extender Rear Derailleur Hanger Hollow Style Mountain Road Bike Speed Change Frame Gear Tail Hook Extender

• The total length is only 50.8mm, achieving high compatibility and stability (too short center distance affects compatibility; too long center distance affects stability).
• 28.9mm center distance greatly enhances compatibility and is easily compatible for mountain 40/42/46/50/52T and for road 34/36/40/42T.
• The structure is upgraded, accurate adjustment and increase the response speed of variable speed. Abolish the limit position, increase the fine-tuning range and make it easier to adjust.
• Hollow out style, lightweight and beautiful while ensuring strength. High-quality material, strong, durable and has long life.
• The tail hook fitting adopts radial grooves to increase friction and solve the problem of looseness caused by vibration during riding. The locking screw made of 7075 aluminum alloy, and the locking is greater.