The new Maxxis Aspen pushes the limits of a lightweight XC tyre designed to have minimal rolling resistance. The Aspen is designed with a high-volume casing to smooth out the roughest roots and rocks, while the dual compounds gives optimal traction in the corners. So if crossing the finish line first is your top Priority, then the Aspen was designed for you.Introducing the All-New MaxxSpeed Compound.An all-new MaxxSpeed compound for the Maxxis cross country (XC) line. The new MaxxSpeed uses silica as a filler in the rubber polymer creating a compound that performs better across the board compared to the old 3C MaxxSpeed. Racers benefit from reduced rolling resistance and improved wet traction.The use of three different durometers of rubber in a single tireMaxxis 3C technologyset our mountain bike tires apart from the competition over the past two decades. But when it was time to develop a new topshelf XC compound, we focused on performance above a specific number of compounds. Maxxis engineers used knowledge gained from the development of our full-silica road racing compound and began testing formulations suited to off-road use. The New MaxxSpeed Compound:Over 25% lower rolling resistance compared to the previous versionSaves a rider up to a minute over the course of a 90-minute XC raceRacked up World Cup, and World Championship wins over the last few seasons with the likes of Nino Schurter, Bec Henderson, and Ghost Factory RacingWeight: 29x2.40 - 770gRace inspired low profile designAggressive side knobsLightweight XC race tyreTPI: 120Bead: FoldablePly Construction: SingleMax PSI: 60Tech: Tubeless Ready, EXO