Scott Gibbs Posted June 25, 2016 Report Share Posted June 25, 2016 Is there even such a thing as a 203 IS to IS adaptor? I know Hope make a +40 for a 200 but it doesn't fit a 203. I ask as I've purchased an old XT 4 pot and want to run a big rotor up front. Ideally I'd love to find an old school 200mm Shimano rotor to match but they're impossible to find. Quote Link to comment Share on other sites More sharing options...
dezmtber Posted June 25, 2016 Report Share Posted June 25, 2016 hope and sram make 200mm rotors and xt 4 pot should run well on a sram centreline rotor 1 Quote Link to comment Share on other sites More sharing options...
dezmtber Posted June 25, 2016 Report Share Posted June 25, 2016 http://www.chainreactioncycles.com/sram-centerline-1-piece-rotor/rp-prod120149 1 Quote Link to comment Share on other sites More sharing options...
old boy chez Posted June 26, 2016 Report Share Posted June 26, 2016 I had this and the only way round it was a Frankenstein IS to post ,post to IS . I'll put up pic in the morning. Quote Link to comment Share on other sites More sharing options...
Mark W Posted June 26, 2016 Report Share Posted June 26, 2016 It seems like it'd probably be a little easier to sacrifice that 3mm and just run a 200mm? The difference in braking power isn't going to be noticeable, but I'd imagine the stiffness/ease of setup of just bolting a standard +40mm adaptor on there would be more of a benefit. 1 Quote Link to comment Share on other sites More sharing options...
Scott Gibbs Posted June 26, 2016 Author Report Share Posted June 26, 2016 5 hours ago, Mark W said: You it's It seems like it'd probably be a little easier to sacrifice that 3mm and just run a 200mm? The difference in braking power isn't going to be noticeable, but I'd imagine the stiffness/ease of setup of just bolting a standard +40mm adaptor on there would be more of a benefit. It's not really the looks to be honest with you it's just that most rotors seem to be 203mm these days and just thought there would be a 203 adaptor for IS calipers. Quote Link to comment Share on other sites More sharing options...
87Monty Posted June 27, 2016 Report Share Posted June 27, 2016 (edited) Last 203mm rotor i use was from Shimano. very good in my opinion.. http://www.ebay.com/itm/New-2014-Shimano-SLX-SM-RT66-L-Disc-Brake-203mm-6-bolt-Rotor-Made-In-Japan-NIB-/221882040056?hash=item33a9333ef8:g:haUAAOSwQTVV8qIi and here is , IS to IS adaptor, i dont know about the quality. http://www.ebay.com/itm/New-40mm-Disc-Brake-Disc-Rotor-Adaptor-IS-to-IS-203mm-/141021941844?hash=item20d5901054:m:mOvFBvC0gIkUEqCxY2KpKXg or this http://www.ebay.com/itm/Disc-Brake-Mount-Extender-Adaptor-203mm-Front-180mm-Rear-Caliper-IS-to-IS/301754783915?_trksid=p999999.c100623.m-1&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D20160323102634%26meid%3D84438176e357434393626dbeb5d22f68%26pid%3D100623%26rk%3D2%26rkt%3D6%26sd%3D141021941844 Edited June 27, 2016 by 87Monty Quote Link to comment Share on other sites More sharing options...
Scott Gibbs Posted June 28, 2016 Author Report Share Posted June 28, 2016 Thanks chaps I've found one now that looks nice a beefy that'll fit a 203 rotor. Quote Link to comment Share on other sites More sharing options...
87Monty Posted July 5, 2016 Report Share Posted July 5, 2016 Come With feedback when you have receive the parts and installed it Quote Link to comment Share on other sites More sharing options...
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