Continental Race King Foldable MTB Tire does it's magic not only with the low, finely-gritted tread bars, but with the large, supple casing and round profile. While this is a tire for big wheels, it doesn’t ride like a big tire, so it doesn't feel slow. It feels responsive. Going up or down a hill, it grips, and the transition to turning is smooth. Lean on the tire for a long-radius turn, and it's still gripping as well as it did while riding a straight line. The Race King 29-Inch tire has a three-ply wrap of 60 thread per inch casing material for a 180tpi casing. The Kevlar bead is foldable. Specs: Weight - 630 grams; Recommended PSI - 50; Maximum PSI - 65; PU - 5.