You could probably get away with a normal caliper for a 57mm drop... If nobody offers anything then keep an eye out for the long drop Tektro calipers that Condor used to have in stock (and are apparently going to restock once they've properly sorted their shop).
I've tried a normal one but it doesn't fit. Maybe it needs to be longer than 57mm... Cheers anyway
I've tried a normal one but it doesn't fit. Maybe it needs to be longer than 57mm... Cheers anyway