Avid Elixir IS caliper with current 185mm rotor.

Want to fit to post mount forks.

Any ideas what adaptor I would need and also would I have to move to 203mm rotor?

I’m thinking Hope adaptor as below:

http://www.chainreactioncycles.com/Models.aspx?PartnerID=79&ModelID=13735

Plus a 203mm rotor may just work?

Any other suggestions?

are you sure your elixir caliper is IS? I thought Avid only made post-mount with those conical washers…..

..which you then put straight onto post mount for 160mm rotor, or use an adapter to go onto IS mount on your fork or frame..

Thats the adapter I’ve used not sure about the 203 rotor though.

chaps, good point.

The calipers are post mount, so to use the existing 185mm rotor and mount to a post mount fork, I only need one of these?

http://www.chainreactioncycles.com/Models.aspx?ModelID=13717

yes benz, that’s the little fella’. Make sure you use the long bolts as on that one it has to go through the caliper, 2 sets of conical washers and the adapter before it goes into the post mount.