Hi would have an oversize brake disc on my yamaha slider, so I went to adjust the fit. I drilled holes up (very easy) but I had to make my own bracket for the caliper, because you can not buy one for a yamaha slider... I started to draw up the holes should be, to the brake caliper had to sit properly, so I drilled holes, sawed so the bracket got the right shape...and just a quick polish to last. Now is the 100% correct fit