HYspeed Rear Brake Master Cylinder Rebuild Kit – Universal Fitment Repair Set

If your rear brake is feeling spongy or leaking fluid, you might not need a whole new master cylinder.

Grab this HYspeed rebuild kit instead.

It's got all the internal bits you need to freshen up your existing unit—seals, o-rings, the works.

It's listed as universal, so double-check your fitment, but it's designed for rear brake master cylinders on various bikes and scooters.

Comes in its original packaging, brand new.

Save some cash and do the rebuild yourself, it's pretty straightforward.