earth europe light
heart light
THREADS PER INCH (TPI)
The number of threads that cross through one square inch of a single ply of the tires 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.Maxxis TPI ratings are the threads-per-inch of a single casing ply,as compared to some competitor TPI ratings.