SuperB Chain Breaker 1-12Spd road it features an aluminum sprocket

it features an aluminum sprocket carrier

The height and the dimension of the knobs are engineered in order to provide the best behaviour and riding feeling over a number of different terrains

Free Stroke adjustment

Exceptionally detailed chamfered edges and channels throughout

XD Freehub

SuperB Chain Breaker 1-12Spd road it features an aluminum sprocketCNC machined chain rivet extractor with ergonomic handle provides superior strength, durability and comfort. The patent chain pin guider helps to quickly and accurately secure the chain. Easy 3 step operation: push the button, place chain on the cradle and release the button. Special design with an adjustable cradle accepts most chains, including 3 32" ~ 3 16" single speed and 5 to 12 speed chains. Cradle can hold 4 links to ensure that user breaks