Description
When your CRF150R’s OEM piston reaches its limit, a quality rebuild is the difference between a sluggish engine and one that delivers crisp throttle response and reliable power. The Wiseco 4915M06600 replaces worn internals with precision-engineered components that restore combustion efficiency while the 11.7:1 compression ratio unlocks measurable gains in acceleration. This complete kit eliminates the guesswork—everything you need for a proper bottom-end rebuild comes in the box.
- 66.00 mm bore diameter
- 11.7:1 compression ratio
- High-silicon aluminum construction
- Includes piston, rings, wrist pin, circlips
- Optimized for combustion efficiency
- Superior heat dissipation
- Designed for high-RPM durability
- Honda CRF150R 2007–2009 fitment
- Complete installation kit included






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