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Your Raptor 660's rear brake feeling spongy or just not doing its thing?

This J&R Collection master cylinder is the fix.
It's a direct replacement for the rear disc brake setup on 2001-2005 Yamaha Raptor 660 and 660R ATVs.
Brand new, never installed, and comes with a warranty so you can ride easy.

No core return hassles—just bolt it on, bleed the line, and get back to tearing up the trails.

Part number's literally \Rear Disc Brake Master Cylinder Assembly,\ so keep it simple.

UPC doesn't apply, but the quality's solid.

4.5 out of 5