Vertex Pistons 03-24 85 SX/13-24 85 SX BW Wrist Pin - 40mm Length

This is a Vertex Pistons wrist pin for your 2002-2016 Suzuki RM85. The wrist pin connects the piston to the connecting rod, and it's a critical part for the engine's internal operation. Because it's a high-stress component, it needs to be built tough to handle the forces involved.

Vertex Pistons uses a fully case-hardened process for these pins, and they're treated with a nitride coating. This coating helps create a hard surface without the risk of distortion that can come with quenching, and it makes the pin very resistant to wear. It also helps prevent galling, which is when surfaces start to seize up and tear against each other under pressure. This means you get a more durable part that can stand up to regular use.