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The official Tire of UNBOUND Gravel! As its name implies, the Boken Doublecross is a dual-sport tire. It is a CX race tire and an aggressive all-conditions gravel tire.
IRC's engineers optimized the tread pattern for each size. The 38mm and 42mm have a fast-rolling center tread for gravel and adventure riding paired with burly side knobs that hook up when the gnar gets gnarly. With more bite than our file-tread Boken, the Boken Doublecross 38 and 42 give you superior performance on loose, rough, or loamy terrain.
This tire is made to survive the Flint Hills gravel.
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