The T31 replaces the very successful T30 EVO as the next evolution in Bridgestone's long line of sport-touring tires. You'll get the best wet weather performance without sacrificing handling in dry conditions or wear life. Newly developed tread pattern with deco groove is optimized to ensure confidence-inspiring wet weather performance with a bold look. Mono-Spiral Belt construction (MSB) provides dynamic handling response with a light, linear feel and superb line holding ability.