TAMIYA TB04 Front/Rear Aluminium Adjustable Damper TB4055F/R by GPM  [TB4055F/R]

Threaded-preload aluminium dampers for TB04

This aftermarket front and rear spring damper is designed for the TAMIYA TB04 chassis and identified as TB4055F/R. It features an aluminium body with a threaded spring collar so preload changes can be made without removing the shock from the model, providing a compact upgrade path for suspension setup.

Fitting is simple for anyone familiar with TB-04 maintenance: remove the original shock, fit the replacement into the stock shock towers and lower mounts, and swap upper or lower pins if necessary. No changes are required to the motor, gearbox or electronics because this is a scale suspension accessory only.

Functionally, these dampers allow precise preload adjustment and help ensure consistent spring seating. Rotate the collar to raise or lower preload, which alters ride height and initial spring rate, then verify suspension geometry and wheel alignment. Use standard shock oil and spring selection practices alongside preload changes for consistent handling.

Maintenance tips: keep the threads free from debris, ensure springs are seated correctly, and check mounting pins and retainers for wear. Clean aluminium parts with a mild solvent and avoid abrasive chemicals to preserve fit and finish. This product is intended for radio control model use and not for full-size vehicles.