Wtb nano tcs light fast rolling mtb tyrethe wtb nano tcs features an elevated centreline that rolls effortlessly on hard surfaces numerous micro knobs that provide lateral traction and predictability and a voluminous casing designed to go the distance it is no wonder why the nano is the 1 tyre choice for tour divide the worlds longest mtb race wtbs tcs tubeless compatible system technology is the solution for riders seeking high performance lightweight and durable mountain bike wheel