Description
The stock reed valve is often the bottleneck limiting your YZ125’s power delivery—especially across the mid-to-high RPM range where you need every bit of performance. Boyesen’s dual-stage power reeds replace that constraint with a precision-engineered solution that sharpens throttle response at low RPMs while unlocking measurable horsepower gains at the top end. This is a bolt-on upgrade that delivers real performance without compromise.
Technical Specifications:
- Dual-stage reed design
- Lightweight top reed
- Ported bottom reed
- CNC-precision engineering
- Boyesen patented technology
- Crisp throttle response
- Maximum high-RPM flow
- Includes Rev-Plate
- Direct YZ125 fitment
- Model years 2005–2016
- Bolt-on installation
- OEM reed stop replacement
