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      RC Cars

      Excitement for a lifetime

      1/8 Inserts

      1/8 tire inserts (foams) to support tires and tune firmness.

      1/8 tire inserts are the foams inside the tire that set its firmness and support it under the power of a 1/8 car. The right insert changes grip, bump absorption and how the tire holds its shape.Firmer for high grip, softer for low grip. See tires and rims in 1/8 offroad buggy.

      Frequent Questions & Answers
      What do 1/8 tire inserts do?

      They support the tire from inside and set how firm it feels, which affects grip, bump absorption and how the tire holds shape under load.

      How do I pick insert firmness?

      Firmer inserts suit high-grip tracks and hard driving, softer inserts suit low grip. Inserts are a common tuning tool for racers.

      Do different brands of insert matter?

      Yes, foams vary in density and shape. Sticking to one system makes your setup more consistent and easier to tune.