Description

ZRX 400E12

they operate the low gear shifts

and thermal characteristics

Cometic Big Bore

KTM EXC 125 1998-2015 - Boyesen Rad Valve Reed Cage Assembly - RAD41C Valve Adjustment Shims ZRX 400E12Boyesen Rad Valve RAD 41C RAD41C 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 aluminium casting, no trimming

Exchange/Return Notes