Moto Tassinari V-Force 3 Reed Valve Set V385S — KTM 85 SX / 105 SX 2003-2007

Moto Tassinari V-Force 3 Reed Valve Set V385S — KTM 85 SX / 105 SX 2003-2007

Product Description

Upgrade the intake system on your 2-stroke KTM with the industry-leading Moto Tassinari V-Force 3 Reed Valve. Specifically engineered for the 85 SX and 105 SX platforms, the V-Force 3 is designed to dramatically improve throttle response and widen the powerband. By optimizing the airflow velocity entering the crankcase, this reed valve set ensures that your engine achieves maximum efficiency throughout the entire RPM range, giving you the competitive edge on the track.

The V-Force 3 features a unique, screwless snap-together cage, which eliminates the risk of hardware coming loose and damaging your engine—a common concern with older reed valve designs. The symmetrical carbon fiber reed petals are identical for both sides of the cage, significantly simplifying maintenance and reducing long-term costs. The shaped reed tips work to accelerate the air-fuel mixture, providing the sharp, instant power delivery required for modern motocross.

Top Features: Moto Tassinari V-Force 3 Reed Valve

• Snap-Together Design: Innovative, screwless construction ensures maximum reliability and engine safety.
• Symmetrical Reed Petals: Simplified maintenance using identical replacement petals for all sides of the cage.
• Optimized Airflow Velocity: Specifically shaped reed tips accelerate the air-fuel mixture for improved torque and throttle response.
• Carbon Fiber/Rubber Construction: Durable, lightweight materials designed to withstand the high-frequency vibrations of high-performance 2-stroke engines.

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

Fitment List

Year Range	Vehicle Brand	Vehicle Model & Sub-Model
2003-2007	KTM	85 SX
2003-2007	KTM	85 SX (17/14)
2005-2007	KTM	85 SX (19/16)
2003-2004	KTM	85 SX BW (19/16)
2003-2007	KTM	105 SX

Frequently Asked Questions

Q: Will I need to re-jet my KTM after installing this?
A: Yes. Because the V-Force 3 allows significantly more airflow than the stock cage, your bike will likely run lean if you don't adjust your jetting. We recommend testing with a slightly richer main jet and pilot circuit setting to achieve the correct air/fuel ratio.

Q: How can I tell when it is time to replace my reed petals?
A: Inspect the petals every 15-20 hours. If you see light passing through the tips when held up to a light source, or if you notice any fraying or chipping on the edges of the petals, they should be replaced immediately to prevent power loss and potential engine damage.

Expert Pro-Tip: When installing the reed valve assembly, ensure your intake manifold is completely free of old gasket residue. Using a small amount of fuel-resistant gasket sealer (like Yamabond or ThreeBond) on the manifold flange ensures a perfect seal, preventing unwanted air leaks that can lead to high engine temperatures and poor idle stability.

Recommended Pairings:
o KTM 85 SX Performance Parts & Upgrades
o KTM 2-Stroke Performance Parts
o Premium Motorcycle Maintenance Supplies

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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