BOYESEN RAD VALVE 84-97 KTM125, BLOCK RAD-41, RAD41 socks Ark 50 RR AC

Ark 50 RR AC

KTM 450SX-F 2011-2014

· Yamaha WR250F 2008

EXHAUST DURATION (@1MM): 260

OIL FILLER PLUG

BOYESEN RAD VALVE 84-97 KTM125, BLOCK RAD-41, RAD41 socks Ark 50 RR ACBoyesen Rad Valve RAD 41 RAD41 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 or