WTB Nano Tire – 700 x 40 TCS Tubeless Folding Black Light Fast Rolling SG2. This is the #1 tire choice for Tour Divide the longest mountain bike race in the world stretching from Canada to Mexico along the Rockies. It features an elevated centerline that rolls effortlessly on hard surfaces numerous micro knob working edges providing lateral traction and predictability and a voluminous casing designed to go the distance.

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