Donnelly Sports

BOS Tubular Tire: 700 x 33 Black

BOS is designed to get you through the worst course conditions. Conditions that will be talked about many years after the race is over. Tall paddle like treads along with aggressive shoulder lugs will help you keep going long after the mud has consumed many of your competitors.

• Aggressive center tread for traction, with buttressed side knobs for excellent cornering