Open Cycles bikes
U.P.P.E.R combines a road riding position with clearance for mountain bike tires. Get out of town on asphalt, hit the gravel roads or switch to single track. Your position gets you there fast; the big tires make you unstoppable. Tire clearance The U.P. fits mountain bike tires up to 2.1” wide. But you can also fit a 40mm cross tire, or a 28mm road tire, or anything else in-between (exact tire sizes depend on manufacturing tolerances and rim width, so this is a guideline. Always make sure you have 6mm clearance between tire and frame). How do we fit such a wide range of tires without affecting the handling? Let's start with the numbers; below is the outside radius for various wheel+tire combos: 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. The super-light U.P.P.E.R. with OPEN U-turn fork and flat-mount disc brakes
MONSTER TIRES, NIMBLE RIDE The OPEN U.P. inspired a generation of gravel bikes that could fit up to 2.1” tires. The WI.DE. (Winding Detours) can run even bigger tires while still fitting road cranks! The monster tires help you conquer the most extreme terrain, the performance geometry & narrow Q-factor keep you efficient while the steering geometry keeps you nimble.
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