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Engines and Components› Belts and Pulleys

VForce

Reed Valve Kit

$157.99 $151.43 Save $6.56

SKU: V385S

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Overview

The V-Force KTM 85SX/105SX Reed Valve Kit V385S is a performance reed valve system designed to enhance engine power and throttle response. It features a unique design with double the reed tip surface area of conventional reed valves, allowing the reed petals to travel half the distance for increased airflow and better sealing. This design also contributes to reduced reed petal wear and a screw-free cage for quick petal changes and safety.
Show original supplier description
The V-Force KTM 85SX/105SX Reed Valve Kit V385S by Moto Tassinari is engineered to significantly improve two-stroke engine performance, making it a popular choice for serious riders and racers. This reed valve system's core innovation lies in its unique design, which doubles the reed tip surface area compared to traditional reed valves. This enhancement results in the reed petals traveling only half the distance to achieve the same airflow. Benefits of this reduced travel include a higher likelihood of the petals being fully open and a better seal when closed, leading to increased engine efficiency. Furthermore, the reduced petal movement minimizes wear, extending the lifespan of the reeds. The VForce3 system offers tangible performance gains, including increased bottom-end power, a stronger mid-range, and improved top-end performance. Its design promotes more airflow, directly translating to more horsepower. The system also features a screw-free cage, which eliminates the risk of screws entering the engine and allows for exceptionally fast reed petal changes. This reed valve kit is specifically designed for all model years of the KTM 85SX and 105SX. It is a direct replacement for the OEM reed valve, offering an upgrade path for riders seeking enhanced performance.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandVForce
Part NumberV385S
CategoryEngines and Components

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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