Vforce 4X Reed System Valve boxRef : VF00033A / 1149646

V-FORCE V-Force 4X Reed Valve — Ref. V4X26AM

Designed for motocross and enduro enthusiasts, the V-Force 4X reed valve builds on the basics to provide a robust alternative to the original system. The V4X26AM has been specifically developed for certain GasGas, Husqvarna, and KTM machines equipped with TBI injection (125/150/250/300 cc) and is also compatible with TPI injection models. It aims to address the weaknesses observed in the original valves by offering a construction designed for better longevity.

• Direct replacement for certain TBI/TPI models 125–300 cc (check compatibility).
• Durability and reliability-oriented design for intensive motocross/enduro use.
• Size and sealing designed for a more consistent intake flow and better reed durability.
• Manufactured by V-FORCE, a recognized brand in the intake parts market.

Compatibility and precautions: Compatible with TPI and TBI injection models. Not compatible with 2024-2025 oil injection TBI models. Before installation, confirm compatibility with your machine (year and engine version). For optimal installation and increased durability, it is recommended to have it installed by a qualified tuner or experienced mechanic.

Examples of compatible models: KTM 300 XC-W HARD ENDURO (2026), HUSQVARNA TC 300 (2026), GAS GAS MC 250 (2026).