VALVE SPRING SET WR YZ 250F 14-18, KIBBLEWHITE 80-81400, RACING SPRING KIT

Type Intake / Exhaust

Retainer Material Titanium

Intake Valve Lift 0.395"

Intake Seat Pressure 55#

Intake Open Pressure 151#

Intake Installed Height 1.150"

Intake @ Lift 0.395"

Exhaust Valve Lift 0.370"

Exhaust Seat Pressure 46#

Exhaust Open Pressure 119#

Exhaust Installed Height 1.095"

Exhaust @ Lift 0.370"

Note These components are intended for use with the KPMI® Top End Kit and are not intended for OEM compatibility.