The Speedline Disc Brake Adapter is designed to work with the Supercross BMX RS7 Fastback Frames but will work with most 15mm Dropout BMX race Frames including the Supercross BMX ENVY BLK 2. It is optimized to work with a 120mm Rotor and has a built in Chain Tensioner for ease of use.
Forged and CNC'd from lightweight 6061 T-6 Aluminum for Maximum Strength and Minimal Weight.
When you install the adapter, please make sure that the axle plates are flat and flush with the frame and that all hardware is tight and secure so you do not damage your frame.
Fits Pro , Pro Plus, Pro XL, Pro XXL, and Pro XXXL 20" and all Pro size 24" Cruisers.
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