Challenge Strada Bianca Tubeless Vulcanised TyreHandmade in Italy, this gravel and hardpack suited tyre from Challenge is robustly created to take on rugged routes and tough tracks. Featuring a bold 120 tpi Nylon casing, vulcanised for added protection, it stands up brilliantly to the rough and tumble of such riding for a confidence-inspiring performance on every outing. Giving you fast rolling and cornering, this world-class tyre is a perfect upgrade for riders who want maximum control in all riding conditions. Features: Tubeless Ready: Yes Use: Rough Road, Cobbles, Big Riders, Hard Packed Dirt Size: 700 Tyre Width: 36mm Internal Rim Width: 17-23mm TPI: 120 Bead: Aramid Casing: Nylon BAR: 2-3.5 PSI: 30-50 Weight: 380gTechnologies: Vulcanized Tubeless Ready (VTR): The highest level of performance offered by car, truck and motorcycle tyre manufacturers is a vulcanized tubeless system. While this is an old technology for cars and trucks, for bicycles it is relatively new and did not even have an internationally accepted design standard (ISO or ETRTO) until recent years. By eliminating the inner tube it is possible to lower the weight and create a softer, more comfortable, more efficient, lower rolling resistance tyre system by running lower tyre pressure. Challenge started introducing Vulcanized Tubeless Ready (VTR) tyres in recent years because the ISO and ETRTO standards for proper VTR tire and rim fit have finally been completed. These standards ensure your safety and your ability to fit and service the tyres with hand tools.Buy Challenge Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.