VFORCE4R REED VALVE KTM SX/TC 85 2003-2026

VFORCE4R Reed Valve KTM SX / Husqvarna TC 85 2003-2026

The VFORCE4R V4R85A Reed Valve is developed for GASGAS MC 85, KTM 85cc and 105cc and Husqvarna 85cc models, combining increased intake airflow with enhanced Reed Petal life.

The unique VForce design features double the reed tip surface compared with a conventional reed valve design. This allows the Reed Petals to travel only half the distance for the same airflow, improving their ability to open and seal while reducing wear. The VFORCE4R version adds rubber overmolding on the reed tip surface, extended reed stops and pre-curved Reed Petals for improved sealing.

• VFORCE4R reference: V4R85A
• Application for GASGAS MC 85, KTM 85cc/105cc and Husqvarna 85cc models
• Double the reed tip surface of a conventional reed valve design
• Combined reed tip area increased by 10.5%
• Wider reed cage for maximum airflow
• Airfoil shape added to cage tips to increase air velocity from 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
• Extended reed stops progressively reduce Reed Petal tip velocity
• Rubber overmolding on the reed tip surface of the cage
• Screw-free design for rapid Reed Petal changes

• Increased bottom-end, stronger mid-range and longer top-end
• Greater efficiency through reduced Reed Petal travel
• More airflow for increased horsepower
• Reduced Reed Petal wear and enhanced service life
• Screw-free design eliminates the risk of screws passing through the engine
• Rapid Reed Petal replacement