Hot Rods 03-23 KTM 85 SX 85cc Wrist Pin Bearing

If you're rebuilding the top end of your 2003-2023 KTM 85 SX 85cc, a new wrist pin bearing is a small part that makes a big difference. This bearing sits between the piston pin and the connecting rod, allowing the piston to pivot smoothly as it moves up and down. Without a good bearing here, you'll get premature wear on your piston, pin, and rod.

This wrist pin bearing from Hot Rods is built tough. It's made from hot-rolled ASTM 4115 steel, which is a strong material chosen for its durability in high-stress applications. Then, it's case-hardened to a hardness of 58-62 Rc. This process makes the outer surface of the bearing very hard, which helps it resist wear from the constant friction it experiences. It's a well-built part designed to handle the demands of a performance engine.