Boyesen Engine Parts
Boyesen makes performance engine components for dirt bikes and powersports machines, including dual-stage power reeds, RAD valves, water pump covers, and clutch and ignition covers for 2-stroke and 4-stroke engines. Motocross and off-road riders fit Boyesen to gain throttle response and usable power.
Boyesen traces its history to 1972, when founder Eyvind Boyesen revolutionized two-stroke intake design, and the brand has since worked with factory racing teams. Riders choose Boyesen for proven performance parts engineered to add power and protect the engine.
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