nathie wafie Posted February 28, 2009 Report Share Posted February 28, 2009 (edited) 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 appreciatedNath Edited February 28, 2009 by nathie wafie Quote Link to comment Share on other sites More sharing options...
eskimo Posted February 28, 2009 Report Share Posted February 28, 2009 I don't really get what your saying. If you have +20 mount then you just need a 180mm IS Adapter for the BB7 if your going to run a 200mm rotor with it. The BB7 will fit as normal with a 180mm IS adapter, just it will be working on a 200mm rotor. Quote Link to comment Share on other sites More sharing options...
nathie wafie Posted February 28, 2009 Author Report Share Posted February 28, 2009 I don't really get what your saying. If you have +20 mount then you just need a 180mm IS Adapter for the BB7 if your going to run a 200mm rotor with it. The BB7 will fit as normal with a 180mm IS adapter, just it will be working on a 200mm rotor.sorry i was explaining i was told tht fitting the bb7 with a 203 adaptor to a +20 mount will still work with a 203mm rotor?lol i havnt tried it and dnt expect it would work, just wonderd if somone had tried it Quote Link to comment Share on other sites More sharing options...
Dave Anscombe Posted February 28, 2009 Report Share Posted February 28, 2009 bit of a post steal sorry nafie luv........but il soon be running a bb7 on koxx forks (mod)having doubts now....using a brake as powerful on forks that will probably die in weeks Will the koxx forks last ? Quote Link to comment Share on other sites More sharing options...
cultiv8ed ::Chris:: Posted March 2, 2009 Report Share Posted March 2, 2009 I always thought koxx forks where plus 30 mount. So you have a 160mm hope for eg but u need a 190mm rotor unless they have changed them. Quote Link to comment Share on other sites More sharing options...
Mowgli Posted March 2, 2009 Report Share Posted March 2, 2009 nath, just minus 20 off the size of the disc and that will be the adapter you will need. (cant get a 183 adapter so will need to make your choice of 180 or 185, i have no experience in doing it with these odd sizes).the new Koxx forks are either +20 or +30 its the old ones that were only +30.i run the old ones (+30) using a bb7 with a 160 adapter on a mono trial 190 rotor. Quote Link to comment Share on other sites More sharing options...
Adrian Posted March 3, 2009 Report Share Posted March 3, 2009 http://www.trials-forum.co.uk/forum/index....howtopic=132097 Quote Link to comment Share on other sites More sharing options...
Alex Dark Posted March 3, 2009 Report Share Posted March 3, 2009 Use a 185mm bb7 adaptor, then take out some of the spacers it comes with...203-20= 183... 185-183 = 2mm difference in diameter, so 1mm difference in radius...so take out 1mm of spacersI think anyway Quote Link to comment Share on other sites More sharing options...
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