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VFORCE4R Reed Valve Yamaha YZ 125 2005-2026
The VFORCE4R V4R04 Reed Valve is developed for the Yamaha YZ 125 from 2005 to 2026, combining increased intake efficiency with enhanced Reed Petal life.
The unique VForce design features double the reed tip surface compared with a conventional Reed Valve. The Reed Petals travel only half the distance to achieve the same airflow, promoting more effective opening, improved sealing and reduced wear.
Technical Features:
- VFORCE4R reference: V4R04
- For Yamaha YZ 125 2005-2026
- Double the reed tip surface of a conventional Reed Valve
- Combined reed tip area increased by 10.5%
- Wider Reed Valve cage for maximum airflow
- Airfoil shape at the cage tips to increase air velocity from the outer ports
- Central wing frontal area reduced by 15.6% with a more aerodynamic shape
- New Reed Petal resin system, carbon fiber and lay-up
- Pre-curved Reed Petals for improved sealing at the tip
- Rubber overmolding on the reed tip surface of the cage
- Screw-free design for rapid Reed Petal replacement
Benefits:
- Increased bottom-end response
- Stronger mid-range and longer top-end
- Greater efficiency due to reduced Reed Petal travel
- More airflow for increased horsepower potential
- Reduced Reed Petal wear and longer service life
- Rapid Reed Petal replacement
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