ive got koxx forxx with +20 mount, currently with magura louise 160 caliper and rockman 180mm disk rotor, ive got a bb7-203mm caliper and 203mm hope disc rotor i would rather use due to the avids power and hold, i was told i could fit the bb7 as normal...but surely il need a bigger disc rotor or smaller caliper adaptor due to the +20 forks?? is it possible?? Any suggestions appreciated Nath