This high-lift racing spring kit is designed for Honda CRF250R (2004–2007) and CRF250X (2004–2015) models, supporting valve lifts up to 0.385". The kit includes chrome silicon valve springs, titanium retainers, high-tensile steel lower collars, and seals, engineered to meet the demands of high-revving four-stroke engines. Developed for performance and durability, it delivers consistent seat pressure and lift characteristics for both intake and exhaust valves.

Features

• Chrome silicon high-lift racing valve springs

• Titanium retainers for reduced reciprocating mass

• High-tensile steel lower collars

• Includes valve seals

• Suitable for both intake and exhaust applications

• Designed for up to 0.385" valve lift

Specifications

• Intake: 0.385" valve lift, 50 lb seat pressure, 154 lb @ 0.363" lift

• Exhaust: 0.385" valve lift, 50 lb seat pressure, 154 lb @ 0.363" lift

Cross-Reference OEM Part Numbers

• Part No. 65-711

• Kibblewhite #30-31300

Vehicle Fitments

• Honda CRF250R 2004–2007

• Honda CRF250X 2004–2015