AKA Indoor Clay compound
The latest addition to AKA’s proprietary compounds is the indoor or “clay” compound. After thorough research and development, the compound has been finely tuned to create maximum traction and performance on clay tracks. The clay compound will be available in 1:8 Buggy, 1:10 Short Course and 1:10 Buggy in many of the tread patterns they currently offer.
Source: AKA [raceaka.com]