TOP END PISTON KIT VERTEX 53.95MM RACE EVOLUTION YAMAHA WR125 05-21 YZ125 05-21 Stock Item:TOP END PISTON KIT VERTEX 53.95MM RACE EVOLUTION YAMAHA WR125 05-21 YZ125 05-21 420D dobby poly

420D dobby poly

Designed for off-road and motocross performance

Maximum clutch performance and smooth shifting

59 Exhaust Lobe Center (Degrees): 103

TOP END PISTON KIT VERTEX 53.95MM RACE EVOLUTION YAMAHA WR125 05-21 YZ125 05-21 Stock Item:TOP END PISTON KIT VERTEX 53.95MM RACE EVOLUTION YAMAHA WR125 05-21 YZ125 05-21 420D dobby polyVertex Pistons has introduced a new line called Race Evolution, specifically designed for 2 stroke off road racing applications. These high performance pistons have been rigorously tested by supported racing teams and feature several advancements tailored for competitive racing. Key Innovations: Reduced Top Land: Minimizes piston weight and optimizes combustion chamber dynamics, enhancing engine efficiency. Special 0. 8 mm Ring: This thinner ring