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MakeHonda®ModelCRF™ 150RYear 2007 to 2009TypeIntakeMaterialC630 BronzeB0.550 "C0.570 "D0.710 "E0.350 "F0.1760 "G0.3566 "Diameter(s)Standard

MakeSuzuki®ModelRM-Z250™Year 2004 to 2006TypeRacing Valve Spring KitMaterialVariousDescription0.445" Valve Lift OK46# Seat Pressure / 156 lb. at .445" lift

MakeHonda®ModelCRF™ 250RCRF™ 250XYear 2004 to 2013TypeValve, Exhaust, Black Diamond™MaterialStainless SteelQuantity1 Pc.DescriptionLightweight One piece forgings with Black Nitroneg treatmentHead Diameter1.063" / 27.00mmStem...

MakeHonda®ModelCRF™ 250RYear 2008 to 2009TypeIntakeMaterialC630 BronzeA0.540 "C0.710 "D0.770 "E0.394 "F0.1960 "G0.3965 "Diameter(s)Standard

MakeHonda®ModelCRF™ 450XYear 2005 to 2013TypeRacing Valve Spring KitMaterialVariousDescriptionIn-0.440" Valve Lift OK 40# Seat Pressure / 148# at .440" liftEx-0.440" Valve Lift OK 70# Seat Pressure / 205# at .440" lift

MakeSuzuki®ModelRM-Z250™Year 2004 to 2006TypeValve Guide, Exhaust, IntakeMaterialC630 BronzeQuantity1 pk.A0.440 "B0.465 "C0.590 "D0.850 "E0.410 "F0.1765 "G0.3765 "Diameter(s)Standard

MakeHonda®ModelCRF™ 450XYear 2005 to 2013TypeValve Guide, ExhaustMaterialC630 BronzeQuantity1 pk.A0.580 "B0.605 "C0.740 "D0.890 "E0.480 "F0.1955 "G0.4360 "Diameter(s)Standard

MakeHonda®ModelCRF™ 250RYear 2008 to 2009TypeRacing Valve Spring KitsMaterialVariousDescriptionIn-0.350" Valve Lift OK 50# Seat Pressure / 145# at .350" liftEx-0.350" Valve Lift OK 50# Seat Pressure / 145# at .350" lift

MakeSuzuki®ModelRM-Z250™Year 2007 to 2013TypeRacing Valve Spring KitMaterialVariousDescription0.445" Valve Lift OK51# Seat Pressure / 160 lb. at .445" lift

ul.a {text-indent = 50px;}New replacement cylinder head.Includes C630 (nickel/aluminum/bronze) valve seats and guides.Competition valve job.Shortened valve guides to accept higher lift cams.Unshrouded combustion chamber.Blended bowl.Stock shaped ports...

ul.a { text-indent: 40px;}Stage 1&2 camUses stock valve springs. Intake and exhaust cams sold separatelyDesigned with Improved Throttle Response (I.T.R.) technology

WINDEROSA DIRT BIKE GASKET SET.Oil Seal sets include all oil seals necessary to rebuild the engine and transmission.Includes output shaft, water pump, clutch, shift and starter seals.