Vforce 4R version H Valve box

Vforce 4R Reed Valve Box Version H

The VForce4R Reed Valve Box Version H is designed as a complete overhaul of the VForce3 to enhance durability and reliability. Specially made for certain models equipped with a high-revving carburettor, it features a higher tension reed for improved performance at high RPMs. Intended for Off-Road use, it aims to reduce failures encountered with stock reed valves while maintaining mechanical compatibility with the VForce family.

Design and Materials

• Complete redesign of components compared to the VForce3, offering a modernised architecture for increased lifespan.
• Higher tension reed on the Version H, tailored for high-revving carburettor models to enhance performance and durability.

Usage and Performance

• Developed for KTM and Husqvarna models to address failures observed in stock reed valves.
• Designed for Enduro/Cross use, it aims for enhanced reliability under the demands specific to these activities.

Benefits

• OEM Reference V4R26H
• Cross Type

Examples of Compatible Motorcycles

• BETA RR 200 2T X-PRO (2026)
• GAS-GAS MC 250 (2023)
• KTM 250 SX (2022)

Complete list of compatible motorcycles available in the dedicated section below