Description
If you’re running a Yamaha YFM125R Raptor and want measurable power gains without compromising reliability, a high-compression piston upgrade is one of the most direct bolt-on improvements available. The Wiseco 13:1 kit delivers a significant bump in combustion efficiency, translating to better throttle response and peak power across the RPM band. Since it arrives complete with rings and circlips, you’re looking at a straightforward top-end rebuild without hunting for secondary components.
The high-silicon alloy construction resists detonation and thermal stress better than OEM units, giving you confidence whether you’re trail riding or pushing hard on the track. This piston has proven itself in real-world conditions, and the precision engineering ensures zero fitment surprises during installation.
- 13:1 compression ratio
- High-silicon alloy
- Includes rings, circlips
- Fits YFM125R 2011–2013
- MPN: 40071M05400
- Complete top-end kit
- Increased power output
- Enhanced durability
