BOYESEN RAD VALVE TC SX 125 17-22, BLOCK RAD-41E Head Pipe MC250F/450F 21-25

MC250F/450F 21-25

ZL1000 (1987)

MR RACING 250 21-

Replacement cheekpads for the GP helmets

primarily in Japan

BOYESEN RAD VALVE TC SX 125 17-22, BLOCK RAD-41E Head Pipe MC250F/450F 21-25Boyesen Rad Valve RAD 41E RAD41E Now delivered with carbon fiber reeds for even greater performance gains Maintains flow velocity through the valve and redirects intake charge for more even distribution to the intake ports Sharper, quicker throttle response Added torque improves performance on hills, through corners and over technical jumps Increases horsepower in low , middle and especially the top end ranges One piece aluminum casting, no trimming