J Concepts - React - 2.2" 4wd Rear Open Cell Inserts - 2pc.
One common adjustment made during carpet and turf racing is a altering the rear tire insert. One trend is to utilize a narrower rear insert while racing on carpet and turf, which has shown to produce different handling characteristics. The narrower design leaves more room for sidewall plunge, providing more side-bite. In addition, the insert is low-profile, tight, and compact, so the tire maintains its small shape for quick and nimble transition and acceleration.
Medium soft open cell foam material 2.2" inner diameter Narrow width, low-profile design Durable material, gray in color