CONTROL ENGINE HEAT. PROTECT YOUR INVESTMENT

Boyesen is the world leader in Motocross and Offroad motorcycle Performance Engine Components including our innovative Supercooler Kit. Keeping internal engine temperatures low will allow your bike to produce more horsepower and MAINTAIN it for the duration of hot summer motos, or in low air-flow, muddy conditions experienced in Offroad. The Boyesen Supercooler is a proven race component, and is the best bolt-on solution for rider's looking to reduce coolant temps, optimize horsepower and extend the lifespan of an engine’s internal valve-train components. Boyesen Supercooler kits are available for a wide range of makes including KTM, Husqvarna, Gas Gas, Yamaha, Kawasaki, Suzuki, and Honda machines including the more popular 4 stroke models like Honda CRF 450 and the KTM 450 SX-F.