Its more about the sidewall stiffness. The car was developed to run on RE040. The 50a is a progression of that and provides decent grip and nice feedback.
I replaced my rain sports on my ST with Parada spec2 which many people consider to be atrocious. The spec2 were good all rounders and decent in dry conditions. They were a massive improvement over the RS2.
I replaced my rain sports on my ST with Parada spec2 which many people consider to be atrocious. The spec2 were good all rounders and decent in dry conditions. They were a massive improvement over the RS2.