I'm trying to fit an IS caliper onto a set of post mount Lyrics with a 203mm disc, so far all I've been able to do is fit one of these
http://www.chainreactioncycles.com/Models.aspx?ModelID=13735
Which gives me the correct distance for a 180mm disc. Ive also got a 20mm Hope adapter, one of these
http://www.chainreactioncycles.com/Models.aspx?ModelID=13736
But I just cannot make it fit without major modifications, there must be an easier way, does anyone know what adapter I need..

