Versatile XC tire capable of handling the rough conditions found on most mountain bike trails Innovative tread pattern allows you to find traction and cornering no matter the soil conditions Overlapping tread design creates a very fast rolling tire SC - Single compound, one compound throughout the tread optimized for longevity and performance Standard 26x2.1 559 Wire Bk/Blk 65 720 27 NoUPC/EAN/GTIN: 6933882516762