Seized pistons the likeliest culprit, you can start by pushing the pistons out a little bit then giving a good scrub with a toothbrush and brake cleaner, then smear the pistons with red rubber grease.
Normally caused by baked on brake dust, or simple neglect.
If that doesn't work then it'll need a proper overhaul and clean up with new seals too.
If you put the bike on the centre stand does the rear wheel spin freely, or is it rubbing badly?
Normally caused by baked on brake dust, or simple neglect.
If that doesn't work then it'll need a proper overhaul and clean up with new seals too.
If you put the bike on the centre stand does the rear wheel spin freely, or is it rubbing badly?
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