Model racers chasing consistent lap times will find the Tamiya 53113 Racing Foam Inserts useful. Matched to Celica GT-4 (58096), Skyline GT-R Nismo (58099) and Mercedes-Benz 190E (58106), these foams help limit tyre distortion and deliver repeatable handling.
These inserts give internal reinforcement so the tyre keeps its intended shape under acceleration and cornering forces. That leads to steadier grip and fewer sudden changes in balance when pushing hard.
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