The Challenge Grifo XS clincher was created to give clincher users the same benefits of a light and fast racing tubular cyclocross tire.
Features:
- All Challenge tires are completely hand-made
260tpi reinforced polyester casing for excellent moisture resistance and durabilityAnti-puncture strip included in tire casingTread is hand-glued onto an inflated tire body; this process yields a neutral state for the tread when the tire is in use and eliminate tread deformities at full-inflationFeatures seamless latex inner-tubeRecommended pressure range: 30-90psi