V-Force Reed Valve Set V4R85A — KTM / Husqvarna / Gas Gas 85cc 2003-2026

Product Description

The V-Force 4 Reed Valve Set (V4R85A) is the premier choice for riders seeking to enhance the throttle response and overall power delivery of their 85cc 2-stroke motorcycle. Designed by the experts at Moto Tassinari, this system features a significantly redesigned reed cage to optimize airflow for peak performance.

This reed valve system utilizes an advanced carbon fiber resin and a sophisticated lay-up process, resulting in superior durability and a more precise seal. The innovative aerodynamic cage design ensures increased air velocity through the outer ports, allowing your engine to breathe more efficiently and perform at its absolute best on the track or trail.

Top Features: V-Force Reed Valve Set

• Long reed stops added to progressively slow reed petal tip velocity for increased petal durability
• Reduced frontal area of the central wing combined with a more aerodynamic shape
• Airfoil shape added to cage tip to increase velocity from outer ports
• Combined reed tip area is increased by 10.5% for better airflow

Please review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.

Fitment List

Frequently Asked Questions

Q: Will the V-Force 4 reed system make my throttle feel more responsive?
A: Absolutely. The 10.5% increase in reed tip area and improved aerodynamic cage allow for a faster, more crisp response every time you crack the throttle.

Q: Is this a direct drop-in replacement?
A: Yes, the V4R85A is designed as a direct-fit replacement for the stock intake system on the listed KTM, Husqvarna, and Gas Gas models, making installation straightforward.

Expert Pro-Tip: When installing, ensure the intake manifold area is surgically clean. I have seen many riders struggle with tuning issues purely because of a tiny bit of dirt creating an air leak at the cage interface. Also, check your intake boot for any small cracks or hardening; replacing an old, brittle boot while the carb is out is an easy way to prevent future headaches.

Recommended Pairings:
o KTM 85 SX Performance Parts & Upgrades
o Husqvarna TC 85 Performance Parts
o Gas Gas MC 85 Performance Parts

At Moto-House MX, we carry the best brands in motocross and off-road performance. Our team has over 40 years of experience helping riders get more out of their bikes. Every order ships fast from our Central Florida location.

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