The 4 stroke piston of choice for decades of champions. Wiseco uses the world√'‚€TMs most advanced forging process. Extensive heat-treat and finishing process assures performance and reliability. Wiseco engineers utilize the latest in 3D design and finite element modelling software to ensure every Wiseco design is developed to provide the greatest strength and lightest weight for each application. Wiseco's in-house Dyno facility, equipped with the latest technology, along with our field-testing network, insure that our products meet the expectations of the demanding MX industry.