Material:metal Color:black Interior Diameter(Optional): 20mm/0.79", 31.8mmm/1.25" (Approx.)
Refitting bracket can refit normal bicycle to update into disc brake bicycle
It is adjustable,and the bracket can be adapted from normal bicycle application into disc brake bicycle.
It is pretty convenient for outdoor cycling, which is a necessity for cyclists.
Features: Durable, Easy to Use, Bike Accessory