The Tamiya 15388 Narrow Reston Sponge Tires in black are aimed at Mini 4WD racers using narrow wheels. Their sponge makeup is tuned to improve grip and steering feel without adding excessive rolling drag.
The narrow profile helps lower rolling resistance and supports stable cornering, which can lead to steadier lap times on technical courses. They are a pragmatic option for racers seeking predictable tyre behaviour.
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