[Closed] Going from 160 rotors to 183. What Mounts Do I Need??????????

IS to IS Doh!

If you use a Rear caliper on the Front you don't need an adapter for 180mm, otherwise you need a +20mm adapter, but that could potentially add flex to the caliper mount causing noisy brakes.

I heard that a +20mm won't work on 183mm rotors?

Post mount or IS mount forks ?

Hope don't do a IS to IS adaptor for 183 discs you would be better with a 180 disc and these adaptors http://www.chainreactioncycles.com/Models.aspx?ModelID=13736

3mm diameter difference is only 1.5 mm radius, there should be enough play in the mounting holes to allow for that.