Thanks a lot for the feedback, good point about the 505, will have to do some digging about clearance I guess - ideally I'd like to be able to fit 700c 40mm with guards.
Ta, worst case I'll get 38 or so, which is probably still more than reasonable. I emailed Carbonda again today, they'd do a mounting point at the front of the brake bridge for an extra $5, which sounds pretty good. I reckon I'll go with the 606 then.
Thanks a lot for the feedback, good point about the 505, will have to do some digging about clearance I guess - ideally I'd like to be able to fit 700c 40mm with guards.