Boyesen engineers have developed a series of technical innovations on its range of intake systems to optimize power, torque and flexibility: Aerodynamic Surface Optimization, Model-Specific Reed Petal Tensioning, Material Fuel Resistance, and Multi-Stage Reed Timing.
BOYESEN valve gearboxes are developed specifically for each motorcycle model
RC2 valve gearboxes, developed in competition, significantly optimize intake flow, resulting in greater efficiency, more power and better revs on YOUR bike!
Spare blades: 360090
Spare gasket: 650062