ProX 80-87 RD350LC-YPVS Piston Ring Set (66.50mm)

If you're rebuilding the top end of your 1987-2006 Yamaha YFZ350 Banshee, a solid set of piston rings is crucial for proper engine function. These ProX piston rings are manufactured in Japan by OEM factories, meaning they're built to the exact specifications and tolerances your engine needs to run smoothly. They are designed to work with various cylinder bore types, including cast iron, Nikasil, boron composite, and electrofusion bores, offering broad compatibility for your rebuild.

ProX sources its rings from well-known suppliers like Rikken Japan, TP, and NPR, ensuring you get the dependable quality you expect. This attention to detail means these rings will help maintain good compression and seal properly within the cylinder. It's important to note that if your original cylinder has chrome bores, ProX offers a different ring set specifically for that application, so be sure you're getting the right match for your specific cylinder setup.