Hot Rods 2018/20-23 Yamaha YZ 65 65cc Wrist Pin Bearing

When you're rebuilding the top end of your 2018-2023 Yamaha YZ 65, a fresh wrist pin bearing is a small part that makes a big difference. This bearing sits between the connecting rod and the piston pin, allowing them to rotate smoothly under high stress. Replacing it during a rebuild ensures proper lubrication and reduces friction, which is key for engine longevity and performance.

This particular bearing from Hot Rods is built tough. It's made from hot-rolled ASTM 4115 steel, a strong material chosen for its durability in engine components. To make it even more robust, it's case-hardened to a hardness level of 58-62 Rc. This process hardens the outer surface while keeping the core tough, so it can handle the constant pounding and rotation it experiences inside your engine.