Maxxis Tyres Technology - Tyre Construction

TYRE BEAD:

The function of the bead is to keep the tire in contact with the rim while the tire is inflated.

WIRE BEAD - A rigid metal wire is utilized as bead material in applications where ultimate strength is needed and transportability is not a factor.
FOLDABLE BEAD - Foldable beads also keep the tire secured to the rim but are lighter weight and easily transported. The bead is made of spun aramid or Kevlar® fibers.
CARBON FIBER BEAD - A flexible material with greater strength to withstand the forces exerted by a high-pressure road tire.

TYRE CASING:

The function of the tyre casing is to create the foundation for the rubber tread and make the shape of the tyre.

DUAL-PLY CASING - Two layers of casing material are used from bead-to-bead, providing additional protection and sidewall stiffness for enduro and downhill applications.
SINGLE-PLY CASING - One layer of nylon wrapped from bead-to-bead. A single-ply casing conforms well to the terrain and is lighter weight.

TPI [THREADS PER INCH:

The number of threads that cross through one square inch of a single ply of the tire’s casing. Lower TPI gives better puncture, cut and abrasion resistance but is heavier. Higher TPI conforms better to the terrain, offering a smoother, more comfortable ride while reducing the weight of the tire.