Lightweight racing valve spring kit - CRF250R springs 18-21

Compatible with supercharged or turbo applications
Designed with a higher spring rate and compatibility with high lift compared to original springs
CNC-machined titanium retainers or H.T. steel (heat-treated) and double Cr-Si (chromium-silicon) alloy springs provide valve train control at high rpm and allow the use of high-performance camshafts.
Manufactured in the USA
The kit includes:
2x CrSi intake valve springs
2x exhaust valve springs CrSi
2x titanium intake retainers
2x titanium exhaust retainers
2x H.T. steel intake base washers
2x steel H.T. exhaust base washers



Specifications


Brand
KIBBLEWHITE


Supplier reference
30-33600


Application
Exhaust, Intake


Spring lift
Intake 0.435", Exhaust 0.400"


Spring lift
Intake 0.435", Exhaust 0.400"


Material
Chromium-silicon alloy


Gasket material
Titanium


Model
Lightweight Racing


Product name
Spring kit


Seat spring pressure
Intake 70 lb, Exhaust 60 lb


Open spring pressure
Intake 209 lb, exhaust 162 lb


Type
Valve


Units
Kit