Available in 25mm (RT25) and 28mm (RT28) widths to meet the preferences for wider tires among today`s road riders Available in 25mm (RT25) and 28mm (RT28) widths to meet the preferences for wider tires among today`s road riders Low rolling resistance, high cornering grip provide speed and stability in any situation 127 TPI nylon casing Ability to run lower tire pressures with reduced risk of pinch flats No tire levers needed or recommended for installation Polyamide puncture protection layer under tread Water siping tread pattern