Always worth checking your brake pads on a new purchase

[gerkin]

[smg id=3236 type=preview align=center caption="20181216 172549"]
Pad material has come away from back plate
Would explain the sticking rear caliper
Outside piston free inside one appears seized
New seals at least ,that's if I can get the pistons out

[His Dudeness]

I think that happens when the bike is parked for a good while and water gets behind the pad material rusts the metal part of the pad