The Tamiya 15377 Wide Roller Stay Set is a practical upgrade for Mini 4WD racers wanting firmer, more predictable handling. Constructed from fiberglass-reinforced ABS, the stay adds rigidity without excessive weight and accepts 9mm, 13mm and 19mm rollers so you can tailor the setup to your race strategy.
New mushroom-shaped rollers in the kit help smooth cornering and lower lateral friction on the track. A slide return spring is included to stabilise rebound, and when you fit the standard 13.8mm rubber roller the car spans 105mm overall, which can aid balance on tighter circuits.
The stay is compatible with VS, Super X, Super TZ-X, Super TZ, and Super FM chassis, making it a good choice for both club racers and hobbyists who want a straightforward stability upgrade.
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