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I have bought a beautiful TI Duster and am building up with some older parts. When I have gone to fit the rear disc brake I find that the caliper a good 6mm away from the disc braker mounts on the frame. Is this normal and do I need a special spacer / adaptor to fill the gap? The rear disc brake is a Hope Mono M4 (approx. 5 years old?).
Cheers all
Tupper
6mm in what direction? Is it possible the brake has mounts for (say) a 160mm disc but the frane's spaced for 180mm?
I would suggest a post mount/ IS mount issue, but I'm guessing you already covered that...
Sounds like you're talking IS mounts. Plain hole on the frame and threaded hole on the caliper. If you mean 6mm radially, you've got the wrong size rotor, if you mean laterally, you need to add some washer between the frame and the caliper.
A picture would help people see what your problem is.