The Tamiya 15113 Rear Brake & Roller Set adds simple mechanical control to Mini 4WD models, using rear bumper brake pads to slow the car over raised track parts and friction rollers to maintain reliable contact. These parts give a straightforward way to manage speed spikes and sudden hops.
This kit suits club racers and weekend hobbyists who want a low-effort handling improvement. By reducing the chance of derailing on uneven lanes, the set helps maintain consistent runs while you work on other tuning areas.
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