The Speedco M2 Pro Disc Brake Mounting Kit V2 is an updated version with the upgrades focused on a beefier design to reduce movement around the pivot point of the axle when applying the brake. CNC machined 6061 aluminum by Rennen Design Group in the US of A, this disc mounting kit allows you to convert your Speedco M2 frame to accept a disc brake using a 120mm rotor. Available for 10mm, 15mm and 20mm axle configurations. 

Note: These mounts are machined to very tight tolerances and as such, choose the right mount for your Speedco frame as there is a 1mm difference in the center of the drop-out on these frames