? HIGH STRENGTH STEEL? --- This bike freewheel is made of high-strength steel, hard chrome-plated, sturdy, corrosion-resistant, high-performance and durable, long service life.
?PRACTICAL DESIGN?--- The inner thread is finished with high precision, which ensure close connection with the bike hub and smooth operation. Providing fast riding speed with less effort needed. Fluent turning movement without much noise.
?APPLICATION FIELD?---The bike freewheel parts are applicable to mountain bike freewheel, not applicable to highway freewheel.There are several models to choose from and it is one of the best companions for mountain bikes.
?SPECIFICATIONS? --- Treatment: Hard chrome plating, Type: 8 speed -11T / 8 speed -12T / 8 speed - 13T / 9 speed -11T / 9 speed -12T / 9 speed - 13T / 10 speed -11T / 10 speed -12T / 10 speed - 13T / 11 speed 11T / 11 Speed 12T / 11 speed 13T (Optional), Package Weight: Approx. 20g
?SERVICE GUARANTEE? --- We are here with a 100% product promise to give you the best customer support. We promise that all the problem will be solved within24 hours.