BOYESEN RAD VALVE TC SX 125 17-22, BLOCK RAD-41E Polisport 400 EXC 4T 00-11

400 EXC 4T 00-11

Compatible with 141 models (yearly)

Slim and stylish profile that enhances the motorcycle’s appearance

100% Nylon

Suzuki RMX250 89-03

BOYESEN RAD VALVE TC SX 125 17-22, BLOCK RAD-41E Polisport 400 EXC 4T 00-11Boyesen 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