Smooth tread racing and training tire with a compound designed to provide excellent grip as well as low rolling resistanceFeatures a triple layered 120tpi casing for improved handling, performance and durabilityGUMX â Rubber compound tailored for different disciplines with a focus on rolling efficiency and gripAST â Aramid Shield Technology, in-casing aramid reinforcement similar to belting but integrated into the casing itself for improved puncture resistanceDBR â Disc Brake Ready rubber specifically designed to withstand the additional wear characteristics from improved braking efficiencyStandard700x28622FoldBeltedBk/Blk953x120GUMX/AST/DBRNoUPC/EAN/GTIN: 086699779434