Description
If you’re pushing your CRF250R beyond stock limits, the factory valve train becomes your first reliability bottleneck. This Wiseco steel valve kit replaces those compromised components with precision-engineered intake and exhaust valves designed to withstand higher RPMs, aggressive cam profiles, and sustained load cycles. Upgrading now prevents mid-season failures and extends your engine’s service life when it matters most.
The kit combines high-strength steel valves with matched spring rates engineered specifically for this platform, eliminating the mismatch between stock springs and aftermarket cams. Wiseco’s OEM-grade manufacturing ensures consistent geometry and tolerance stacking, while the included moly paste protects cam lobes and rocker buckets during break-in. Installation is straightforward bolt-on work with detailed instructions—no custom fabrication required.
- Complete intake/exhaust set
- Steel construction
- Precision-matched springs
- Honda CRF250R 2004-2007
- Moly paste included
- OEM-grade components
- Bolt-on installation
- Extended valve life
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