These are the AKA 1:10 buggy rear red soft closed cell
inserts. These work with the AKA EVO tire and wheel system.
The EVO insert boasts a new design that improves handling and
durability. The lower profile tire package allows for a smaller lower profile
molded insert. This lowers the weight as well as improves responsiveness. The
industry standard setting closed cell foam insert from AKA has changed the off
road tire picture forever.