Optimized for 29" wheels, the 29-0 is a World Cup level racing tire providing low rolling resistance, maximum climbing traction and confident cornering. Plus, we relieved material between the tread knobs dropping the weight without affecting the tread performance.29er-specific engineering and designLightweight, race onlyHigh thread count casing for suppleness and strengthProprietary compound gives excellent traction in a wide variety of conditionsApprox Weight: 430g