Challenge Dune Tubular 700x33c - The Ultimate Tyre for Sand and SpeedUnleash your full potential on the most demanding and specific terrains with the Challenge Dune Tubular 700x33 gravel and cyclocross tyre. Engineered for competitive racers and skilled riders, the Dune is a masterpiece of design, offering a decisive advantage when speed and precision are paramount. This isn´t just a tyre, it´s a specialized tool for dominating fast, dry courses.CHALLENGE TUBULAR DUNE COVER 28/33 TE BLACK/WHITE.Ultra-fast coverage for sand but also suitable for icy paths for those with great control skills.The secret weapon of Belgian cyclists to improve their riding technique.The Dune Tubular is your key to conquering deep sand sections, dusty hardpack, and even frozen, icy tracks where minimal tread and maximum control are required. Its unique design philosophy focuses on reducing rolling resistance to an absolute minimum, allowing you to maintain momentum and conserve energy where others falter.Key Benefits:* Unmatched Rolling Speed: Experience an incredible reduction in rolling resistance thanks to the specialized, low-profile tread pattern. Glide over sand and hard-packed dirt with unparalleled efficiency, making it the perfect choice for dry race days and specific gravel events.* Superior Ride Quality & Feel: The handmade tubular construction provides an exceptionally supple ride that conforms to the terrain. This enhances traction, improves cornering confidence, and reduces rider fatigue, allowing you to push harder for longer.* Specialist Terrain Domination: Specifically designed as a sand tyre, the Dune excels in loose, dry conditions. Its capabilities also extend to icy roads and paths, offering a unique solution for experienced riders who can leverage its fast-rolling characteristics for winter training and racing.* Enhanced Puncture Resistance: Built with Challenge´s Puncture Protection System (PPS), an extra layer of highly resistant material is placed between the casing and the tread to significantly reduce the risk of flats, ensuring you can race with confidence.Main Features:* Specialized Diamond-File Tread: A fast-rolling, minimal tread design that provides just enough bite for acceleration and braking on loose-over-hard surfaces without compromising straight-line speed.* Handmade Tubular Construction: Meticulously crafted for performance, this construction allows for lower tyre pressures, a larger contact patch, and a sublime, responsive ride feel that is the hallmark of professional-grade tyres.* High TPI Casing: The high thread-count casing contributes to the tyre´s suppleness and low rolling resistance, creating a perfect balance of durability and performance.* Optimized for Competition: As a preferred choice for cyclocross and gravel racers in specific conditions, this tyre is built to give you a competitive edge when every second counts.Technical Specifications:* Use: Gravel cycling, Cyclocross* Size: 28´´- 700x33c* ETRTO: 33 - 622* Type: Tubular * Bead: Folding* Casing: SuperPoly* Recommended Pressure: 1.6 - 6 bar (23 - 90 PSI)* Width: 33 mm* Colour: Black tread with white sidewalls