-Updated, Enhanced "S" compound -Faster than the leading competitors - Extreme Tread Edge design brings tread compound father down the shoulder- -Performance Racing Core - reinforced internal structure -For quicker warm up and offering maximum dry performance -Lower lap times on the track with increased grip in hard cornering and predictable feedback -Reduces sidewall flex for instant steering response and extreme grip that's highly predictable - Standard Manufacturer's 6-year Limited Warranty