having trouble finding calipers to fit my bike bought some from a breaker but they are from nc21 right hand side fits ok but left wont am i correct in thinking nc 21 has smaller discs if so why does one side fit and the other one doesnt .willl any other model fit ? any advice

Hey Andy.
Lilley your sir name dude ?
Later, Sean (Lilley)

NC21 calipers should fit straight on. I had this discussion a while ago when I was struggling to re-build my knackered calipers.

They both have the same sized discs. However the NC24 has floating discs (this wont' affect caliper fitment)

Do you have all the brackets?

Are they actually the right calipers?

Where about does it not 'fit', pictures would be great.