Superlight version of the U.P. Combines performance-oriented road geometry & parts with clearance for mountain bike tires. Start on asphalt, try gravel, hit single track. Its geometry makes you fast; its tires unstoppable. The U.P.P.E.R. accepts flat-mount brakes and ships with an OPEN U-turn fork.
Every U.P. and U.P.P.E.R. shares the same shape, geometry, intended use and most importantly: tire clearance. But they differ in layup, weight, fork, disc brake mounts, thru-axles and colour.