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Maxxis has done it again with its latest XC race tire. The new Maxxis Aspen pushes the limits of a lightweight XC tire 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.
Wirebead: As it can be the economy option, it is used for downhill riding. The wire beads are less elastic than the aramid-fiber (Kevlar) beads used in folding tires, which helps hold the tire to the rim in hard cornering at lower tire pressure.
Folding: The main advantage of a folding-bead tire is its weight. The aramid fiber beads weigh less than steel wire. Folding beads are also easier to store and travel with.
TPI: TPI stands for threads per Inch. It defines the number of threads contained in one inch of the tire casing. The lower the number of TPI, the larger the gauge cords in the casing. Thus, the more durable the tire becomes. The higher the TPI, the more lightweight the tire becomes and the more supple the ride of the tire.
Dual or 2PLY: Two 60 TPI (threads per inch) casings vulcanized with butyl rubber and reinforced sidewalls make up Maxxis downhill casings, which are world renowned for performance and reliability. Maxxis DH casings provide more stability at high speeds and allow for lower air pressure without the risk of pinch flatting.
Compound Durometer: It is an international standard for measuring the hardness of rubber in Shore "A" units. The Maxxis eXCeption line of tires at 62a Durometer is more rigid than soft Maxxis Super Tacky(ST), which is 42a.