Rear Traction Upgrade for Tamiya 53319 - Rear Inner Sponge Set for RC Boy's 4WD  [53319]

Rear grip and stability for RC Boy's 4WD with Tamiya parts

The Tamiya 53319 - Rear Inner Sponge Set is made to boost the handling of RC Boy's 4WD cars by supporting the rear tyres from inside. These sponge inserts sit behind the tyre beads to help maintain tyre shape and deliver more consistent grip during high speed runs. Built from resilient material, they stand up to regular club use and reduce frequent tyre deformation so you can focus on set up and lap times.

How these rear sponges affect handling

Tire inserts are a key tuning item for competitive driving. The Tamiya inner sponges help absorb small impacts and keep the tyre profile stable, which improves traction and steering feedback on paved tracks and mixed surfaces. They are a straightforward upgrade for hobbyists wanting crisper rear-end control.