BOYESEN 1998 RM125 BOYESEN RAD BLOCK RAD-21D Heat Shield YEAR 2008: Require accessory 0017634

YEAR 2008: Require accessory 0017634

KTM: 2015 - 2026 125 EXC

Monster 900 City Dark

YZ 450F 03-07

BOYESEN 1998 RM125 BOYESEN RAD BLOCK RAD-21D Heat Shield YEAR 2008: Require accessory 0017634Boyesen Rad Valve RAD 21D RAD21D 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