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  Why choose Challenge? What's the point in training till you drop if you're going to be losing efficiency and speed in your tires? Ride quality is paramount, and no other tire offers the supple, responsive traction of a Challenge Tubular, eliminating barriers in achieving your maximum speed and potential. Supple tires not only offer a sublime ride, they reduce rolling resistance, and enable more precise handling and a greater range of pressures. They adapt quickly as the tire changes shape while cornering and rolling, which increases road surface contact and grip while cornering, plus shock absorption as you pass over irregularities in the road. When searching for a Tubular or Open Tubular, consider the following factors, all of which play a role in the tire's performance. Tubulars and Open Tubulars: Tubular tires are, well, tubular. They are sewn shut around a Seamless Latex Inner Tube, already in a tube shape, and are mounted and glued directly on a rim, rather than around a tube. However, they require a purpose-made tubular rim that would usually only be used on race day to avoid damage. Open Tubulars mount like a standard clincher, but are made using the same artisan Handmade process as our Tubulars and maintain most of the suppleness and ride quality gained from a Handmade Tubular.

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