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Description
FEATURES
- All piston skirts are coated with a hi-tech Molybdenum Disulphite coating for faster break-in time and increased piston life
- Cast Replica piston kits are gravity cast aluminum alloy (not forged) with 18% silicone content, which produces an extremely light but very strong piston
- Forged Replica pistons are forged from 2618 aluminum for superior strength and durability
- Forged High Compression pistons improve power and torque across entire rpm range
- Forged Big Bore pistons increase engine's displacement, torque, and peak horsepower
- Forged Replica pistons are forged OE replacements
- All pistons are heat treated with a T-5 hardening and tempering cycle
- Replica pistons and all rings are OEM replacements
- Kits include piston, rings, wrist pin and circlips
- Two stroke replacement rings are sold individually (Example if your piston has two rings you will want to order two rings)
- Four-stroke piston rings sold as a set
Technical Specifications
- MFG. Part Number 22915B
Vehicle Information
Honda CRF150R Dirt Bike (2007-2026)
The Honda CRF150R, a leading racing motocross bike in the mini-class, has maintained exceptional consistency from its 2007 introduction through to 2026. This high-performance model is powered by a 149.7cc (150cc) liquid-cooled, single-cylinder, four-stroke Unicam engine, delivering 22 horsepower. Its robust design, featuring a 32mm Keihin FCR carburetor, ensures optimal power delivery for competitive riding. Throughout its production, the CRF150R has been offered in two main trims: the standard CRF150R and the CRF150R Expert (CRF150RB). The standard model features 17-inch front and 14-inch rear wheels, while the Expert version, designed for larger riders, boasts larger 19-inch front and 16-inch rear wheels, a taller seat height, and increased suspension travel. Despite minor carburetor adjustments over the years, the core engine design, Unicam architecture, and overall chassis have remained largely unchanged from 2007 to 2026, highlighting Honda's confidence in its proven platform. Q: How do I ensure I select the correct parts for my CRF150R?
A: To guarantee a perfect fit, please use the year and edition selector at the top of this page. Q: Are there significant differences between model years?
A: While the CRF150R has seen minor updates, its core design and engine have remained consistent across all model years from 2007 to 2026.
Maintenance
| Component | Interval | Details |
| Engine Oil Change | Recreational Riding: Every 10 hours. Aggressive/Race-Level Riding: Every 5 hours. | |
| Oil Filter | With every engine oil change | Ensures maximum engine service life. |
| Air Filter Service | 2007 Models: Recreational Riding: Every 5 hours. Aggressive/Race-Level Riding: Every 2 hours. 2015, 2023, 2025, 2026 Models: Recreational Riding: Every 15 hours. Aggressive/Race-Level Riding: Every 5 hours. | Frequent inspection and cleaning are crucial, especially in dusty conditions. |
| Coolant | Every 3 years |