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Version 4 Above Ground Model 250i Motorcycle Dynamometer Installation Guide
ADJUSTING THE BRAKE PAD CLEARANCE
There should be equal pad clearance on both sides of the rotor. If the pads touch the
rotor during a run, the information provided by the dyno will be inaccurate. Use the
following steps to adjust the clearance.
1 Loosen the brake caliper stop bolts.
2 Insert the brake adjusting shim between the inboard brake pad and the brake
rotor. Refer to Figure 3-18.
3 Remove the hairpin cotter and hand tighten the castle nut on the caliper assembly
to clamp the brake pads against the rotor and shim. Refer to Figure 3-11 for
hairpin and castle nut location.
4 Tighten the brake caliper stop bolts.
5 Loosen the castle nut and remove the shim.
6 Adjust the clearance between the outboard brake pad and rotor. Loosen the castle
nut to increase the clearance.
There should be equal space on both sides of the rotor.
7 Replace the hair pin cotter in the castle nut.
Note: Cycle the brake to verify the brake pads release far enough so they do not
touch the rotor. If the pads touch the rotor during a run, the information provided
by the dyno will be inaccurate.
Figure 3-18: Adjust Brake Pad Clearance
brake adjusting shim
inboard brake pad
rotor
brake caliper stop bolts
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