Wossner piston (84,92-85,42mm) Yamaha YZ / IT 400 77-78

Wössner is a renowned German manufacturer specializing in high-performance pistons, connecting rods, and other engine components for automotive, motorcycle, and marine applications. Known for precision engineering and advanced forging techniques, Wössner products are built to withstand extreme conditions and deliver exceptional durability and performance. They cater to both professional motorsports teams and performance enthusiasts, offering custom solutions and OEM replacements. Wössner is highly regarded for their focus on innovation, using cutting-edge materials and design to improve engine efficiency and power output.