The Yokomo ZR-039MA Medium Mold Inner is aimed at 1/10 scale touring cars running medium narrow 24mm tyres. Its very slim construction forms a small gap between insert and tyre to promote better surface contact and improved traction.
With improved contact patch consistency, the ZR-039MA helps tyres cling better through corners and maintain composure under load, making steering response more reliable lap after lap.
Compatible with MRTC-YD2 and MRTC-YD2CK chassis variants, this insert fits into common setups without significant changes, ideal for racers seeking a subtle but useful handling change.
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