Early thumpstar rear brake caliper

[b44]

Hi everyone, I've picked up early version thumpstar 86cc bike, which I'm doing up for my nephew, I'm struggling to find this particular rear brake caliper? Can any gurus help?

[dirtbkr188]

what is the distance between the two mounting bolt holes? Most times a replacement is based on that measurement, like THIS ONE (https://tboltusa.com/store/piranha-43mm-rear-brake-caliper-p-1279.html)

[b44]

Thank you sir exactly what i needed