I have a 2001 klein adroit and am trying to fit a rear disc. It seems even with the a2z adapter the brakes still dont fit as the rotor skims the frame. The mechanic at my local bike shop says I need an IS mount or 22mm mount caliper.
Can anyone help?
I have the same mount on my Klein Mantra from around the same time. Luckily the disc doesn’t foul the frame.
As above, you’re going to have to do some bodging. I’ve seen this done by making a dent in the frame (deliberately!) to provide clearance to the disc but I can understand that this isn’t one for the faint-hearted.
Otherwise, the adaptor is really a very simple bit of folded metal so you could easily enough make your own to allow fitting a smaller disc.