19-11-2016, 06:25 PM
Take the caliper off, push the piston back in with water pump pliers or similar and then pump it out a little with the brake pedal. do that a couple of times and it'll free up if your lucky.
Worst case senario it'll need a new caliper and people sell pairs of them for £20 these days.
Worst case senario it'll need a new caliper and people sell pairs of them for £20 these days.