The new WeirWolf is the product of a five-year collaboration between top endurance downhiller Mark Weir and WTB's chief designer Mark Slate. It boasts unparalleled grip, predictability at any lean angle, and it's packed with features. The WeirWolf is the most advanced tire on dirt. This video demonstrates the design process, testing and technology behind the tire. The film also contains scenes from WTB's private test track, known as The Ranch.

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