

The all-new VFORCE4X for select GasGas, Husqvarna and KTM TBI fuel injected 125/150/250 and 300cc motorcycles has been designed to offer you exceptional durability and overcome the shortcomings of the stock reed valve system. The VForce reed valve system by Moto Tassinari has been the reed valve system of choice by anyone serious about two-stroke engine performance for the last 25+ years. The simple premise of the VForce reed valve system is to increase engine power and throttle response by increasing the efficiency over a conventional reed valve design by doubling the reed-tip surface.
EC 250 (2022–2023)
EC 300 (2022–2023)
EX 250 (2022–2024)
EX 300 (2022–2024)
MC 125 (2024–2025)
MC 150 (2025)
MC 250 (2024–2025)
MC 300 (2025)
TC 125 (2024–2025)
TC 150 (2025)
TC 250 (2024–2025)
TC 300 (2025)
TE 150 (2019, 2023)
TE 150i (2020–2022)
TE 250 (2023)
TE 250i (2018–2022)
TE 300 (2023)
TE 300i (2018–2022)
TX 300 (2019, 2023–2024)
TX 300i (2020–2022)
125 SX (2023–2025)
125 XC (2023–2025)
150 EXC TPI (2021–2023)
150 SX (2023–2025)
150 XC-W TPI (2020–2023)
250 EXC TPI (2018–2023)
250 SX (2023–2025)
250 XC (2023–2025)
250 XC TPI (2020–2022)
250 XC-W TPI (2018–2023)
300 EXC TPI (2018–2023)
300 SX (2023–2025)
300 XC (2023–2025)
300 XC TPI (2020–2022)
300 XC-W TPI (2019–2023)
300 XC-W TPI Erzberg (2020)
300 XC-W TPI Six Days (2019–2020)
Shipping of motorcycle units is only allowed for specific cases. Please contact our sales team to check eligibility and payment process.
New and unused items within the first 10 days of delivery can be exchanged or refunded. Items must be returned with all manufacturer’s packaging and placed inside an external shipping box.
Important: Anything sent back to us without an external shipping box is breaking our refund/exchange policy and will be sent back to sender without a refund.
Any merchandise which has been “taken out for a ride” is considered used and cannot be returned. We encourage you to walk on your carpet if trying boots, or to wear your helmet indoors before heading out on the bike.
Any part which has been installed or shows signs of attempting to be installed on a vehicle is non-returnable.
The cost for return shipping is a flat $25 + tax and will be deducted when we issue your refund.
If you’d like to make an exchange, you will need to place a second order for the new item.
Certain conditions and exceptions can be applied to our return policy. If you're unsure if your product qualifies, give us a call. There are certain items that we cannot accept as returns. These include:
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