I recently bought a new wheel set and transferred the brake discs to the new wheels. Both in the front and back the brake discs are now not properly aligned between the brake pads. You can see in the picture that the discs are offset, slightly touching the side of the brake pad.
Great for strength workout, bad for speed. What do I adjust on the brakes to fix this?
Mechanical disc brakes, canyon endurance 7 AL.
by prinskarel
3 Comments
Slacken off the caliper bolts, pull the brake on, and torque the caliper back up with the brake level held.
Get a caliper alignment tool, they are super cheap and work brilliantly for this task. Can see how to use them online.
Are you planning to use the old wheels as well? In that case I’d set the wheels up have the brake rotors in exactly the same place, meaning they go in between the pads in exactly the same place. Google how to shim your rotors.
If these are your only wheels from now on, you just need to undo the brake caliper bolts (should be 2x 6mm ones) and move the caliper a tiny bit to show the rotor not rubbing. Because they are mechanical disc brakes, the piston may only move from the inside, rather than both sides. This means the piston pushes the rotor onto the other pad. In this case I set the rotor close to the outside pad so it doesn’t have far to go when pushed. Otherwise when you put the brakes on you touch the pad fast (with the single moving piston), but there isn’t any grab until the other piston comes into play. A false sense of braking.