Most people now like racing in high bite tracks (sugar type or glue type). Those tracks wear out all tires very fast. The "Key Lock" is the best solution for those tire killer tracks. A rounder design with crowded C-Pin permutation, the Key Lock is a good choice for those tracks.
The T-Pro rubber is specially formulated from high-quality compounds giving the tires extraordinary grip and control. This quality bundled with very fair pricing makes the T-Pro tires something to look out for!