WOSSNER offers you a valve kit specially designed for motocross use, enabling you to refurbish and optimize the timing system of 4-stroke engines. These complete kits generally include valves (intake or exhaust) combined with appropriate springs, guaranteeing reliable, smooth engine operation. Manufactured in high-strength nitrided stainless steel, the components offer excellent durability, increased resistance to high temperatures and improved wear resistance, even under extreme conditions. WOSSNER kits are designed using state-of-the-art technologies and rigorous quality control, ensuring consistent performance and optimum compatibility with off-road engines.