Widely-spaced and carefully siped square knobs generate edge-to-edge grip while sophisticated rubber compounds ensure traction across a broad range of terrain Widely-spaced and carefully siped square knobs generate edge-to-edge grip while sophisticated rubber compounds ensure traction across a broad range of terrain Durable casings offer security wherever the trail may lead ULT - Lighweight casing fabric utilizing smaller thread fabric. This casing uses less rubber-making the tire more supple and faster rolling, with improved traction DRT - Rugged All-Terrain compound specifically formulated to balance grup, wear and efficiency MWL - Durable mono fabric, found throughout the mountain range of tires where cut and abrasion resistance is paramount EN - Supple casing sidewall support, utilizing 1.5-ply contructed casing increases sidewall layers by 50% to provide additional support while maintaining a supple feel EBIKE25 - has achieved a passing rating for use with E-Bikes up to 25kph and is ECE-R75 approved