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. The 33mm Doublecross gives you that bite you need in high-torque CX racing and tight cornering. With multitude of small blocks across the entire tread surface, the Doublecross 33 is a dream for off-camber riding and cornering. Our 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.