V-FORCE4 REED VALVE YAMAHA YZ 65 2018-2026

V-FORCE4 Reed Valve Yamaha YZ 65 2018-2026

The V-FORCE4 Reed Valve for the Yamaha YZ 65 from 2018 to 2026 uses the VFORCE4R V4R82B-i system, developed to improve airflow, throttle response and Reed Petal durability.

The system combines a winged air guide that increases air velocity with a custom intake manifold boot that provides a straighter path to the intake. The carbon fiber Reed Petals benefit from the VForce design, with double the reed tip surface of a conventional design and only half the travel required to achieve the same airflow, helping reduce wear while improving opening and sealing.

• Reference: V4R82B-i
• For Yamaha YZ 65 2018-2026
• Winged air guide to increase air velocity
• Custom intake manifold boot for a straighter intake path
• Carbon fiber Reed Petals
• Double the reed tip surface of a conventional design
• Combined reed tip area increased by 10.5%
• Wider reed cage for maximum airflow
• Airfoil shape at the cage tip to increase air velocity from the outer ports
• Central wing frontal area reduced by 15.6% with a more aerodynamic shape
• Pre-curved Reed Petals for improved sealing at the tip
• Long reed stops for increased Reed Petal durability
• Rubber overmolded pad on the reed tip area
• Screw-free design for rapid Reed Petal replacement
• Includes complete VFORCE4Ri Reed Valve system with Reed Petals, custom intake manifold boot, gaskets, installation instructions and Moto Tassinari and VForce4R decals

• Improved throttle response
• Greater intake airflow efficiency
• Increased bottom-end, stronger mid-range and longer top-end
• Reduced Reed Petal travel and wear
• Enhanced Reed Petal life
• Rapid Reed Petal replacement