First of all let me start of by saying sorry if this is in the wrong section, if it is please could someone move it to the right location.

I have a 150cc quad, Make and model are both unknown. Chinesse special i believe as it has a GY6 engine.

Well today i was bleeding the rear brake and it was pants and after a few pumps of the lever it dropped its guts all over my garage floor. So im looking to buy a new one.

The measurements of the fixing holes (Center to Center) are 52mm.

What other makes and models of ATV's use the same sized caliper?

Thanks in advance.