Tamiya 15501 Slimline Mass Damper Set - Compact Mini 4WD Balance Kit  [15501]

Tamiya 15501 Slimline Mass Damper Set overview

The Tamiya 15501 Slimline Mass Damper Set gives Mini 4WD racers a compact option to improve straightline stability and reduce bounce at speed. Its low-profile design helps you add mass where space is limited, letting you refine the car's balance without bulky hardware.

Slim format and how it works

Each damper has a 7mm diameter and comes in two lengths: 5.5mm (1.5g) and 11.5mm (3g). The slim profile fits tight chassis areas and provides targeted weight that soaks up vibrations, helping the car stay planted through high-speed sections.

Fitment and setup notes

This set is compatible with Mini 4WD and Mini 4WD PRO models, though some chassis or body trimming may be needed to install them cleanly. Use the two different weights to experiment with front-to-rear balance and clearances for your specific car.

Practical tuning advice

Mass dampers are useful on tracks with sharp corners and rough patches where keeping wheels in contact matters. Try small incremental changes to weight placement and test laps to find a setup that reduces derailment risk while keeping lap times consistent.