Speedline Disc Mount Adapter & Chain Tensioner (120mm)

The Speedline Disc Brake Adapter pairs seamlessly w/ the ENVY RS7 Fastback Frames. They also work w/ most 15mm Dropout BMX race Frames, including the Supercross BMX ENVY BLK 2.

The Speedline Disc Brake Adapter is optimized to work w/ a 120mm Rotor & sports a built-in Chain Tensioner for ease of use.

Forged & CNC'd from lightweight 6061 T-6 Aluminum to provide Maximum Strength & Minimal Weight. 

When you install the adapter, please ensure the axle plates are flat & flush w/ the frame & that all hardware is tight & secure so you don't damage your frame. 

Fits Pro, Pro Plus, Pro XL,  Pro XXL, Pro XXXL 20", & all Pro size 24" Cruisers.

Available in both 15mm & 10mm sizes. Please select the proper size for your axle type.