The Commencal Supreme DH V4.3 / V4.4 / V4.5 shock axle insert is an essential frame part to ensure the connection between the rocker and the rear shock on Supreme DH downhill frames. This technical insert guarantees the mechanical integrity of the Contact System 2 suspension system and the upper pivot characteristic of the Supreme DH V4 range, recognized since 2015 for its effectiveness in world competition.

Compatibility and affected versions

This insert is specifically designed for the V4.3, V4.4 and V4.5 generations of the Supreme DH. It fits the following models:

• Supreme DH 29: model years 2018 to 2021
• Supreme DH 27 (27.5"): model years 2019 to 2020
• Supreme DH 29-27 (mullet): model years 2021 to 2022

This part is used in combination with the W18DH29AXLERKSH rocker/shock axle, which is tightened with a torque of 9 to 12 N.m.

Technical function and integration

The insert ensures proper centering and distribution of stress at the junction between the rocker and the shock mount, a critical point subjected to intense forces during descents. It contributes to the durability of the suspension system and the proper functioning of the upper main pivot, which characterizes the kinematics of the Supreme DH V4 platform. The associated frames are made of triple-butted 6066 aluminum with T4 and T6 treatment, offering an optimal compromise between stiffness, strength and weight.

Standards and assembly

• Recommended tightening torque: 9-12 N.m (depending on the axle used)
• Bearing system: Enduro bearings (6804 / 6902 depending on pivot points)
• Finish: anodized aluminum or high-strength steel (depending on version)
• Maintenance: check tightening regularly, replace in case of wear or deformation

This part is an integral part of the Supreme DH V4 maintenance and repair kit, allowing riders to keep their machine at competition level. For any doubt about compatibility with your specific model, consult the official Commencal Tech page.