A round profile closely-spaced tread and supple casing contribute to Peak�s low rolling resistance while ample traction and braking performance are delivered thanks to siping on every knob and its multi-dimensional Dynamic A/T compound. ULT - Lightweight casing fabric utilizing smaller thread fabric. This casing uses less rubber-making the tire more supple and faster rolling with improved traction. DAT - Dynamic all-terrain compound providing excellent rolling efficiency while maintaining a high level of grip to minimize power transfer loss. MWL - Durable mono fabric found throughout our mountain range where cut and abrasion resistance is paramount. EBIKE25 - has achieved a passing rating for use with E-Bikes up to 25kph