Challenge Grifo XS Cross Tubular - Road Bike Shop
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|Challenge Grifo XS 33 Cross Tire - Tubular
The fact remains that the combination of a tubular tire's light weight and low PSI requirement make it a clear favorite for cross. And when it comes to a cross tire that's built specifically for hard, dry courses, we'd argue that none work as well as the Grifo XS 33 Cross Tubular. Its supple...