A unique TriStore OPEN / Easton collaboration, that was born out of our love for riding great componentry on the already proven heritage of the Open U.P.P.E.R. The brand new U.P.P.E.R. comes with a lighter frame weight, flat mounts for brakes and 12mm front axle to accommodate even more brake and wheel options. Easton componentry has a great history at the store, having originally been used on our Cervélo road bikes back when we opened the store in 2003 to now becoming experts in mountain bike componentry having combined companies with Race Face. All of this means Easton have the perfect heritage to produce components for our new OPEN builds.
Classic U.P. vs New U.P. vs U.P.P.E.R.
The 3 members of the U.P. (Unbeaten Path) family all combine a road riding position with clearance for mountain bike tires. Get out of town on asphalt, hit the gravel roads or switch to singletrack. Your position gets you there fast; the big tires make you unstoppable.
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.
Disc brake mounts
One of the key differences between the Classic U.P. on the one hand and the new U.P. and U.P.P.E.R. on the other is the disc mount standard. The Classic U.P. uses post-mount, the other two are designed for flat-mount.
To use the lightest possible brakes from both Shimano and SRAM, you need their flat-mount brakes. And thanks to the U-turn fork, you can make those set-ups even lighter by removing the normally required adapter. A win-win.
The new U-turn fork doesn't just save you weight on the flat-mount brake, it is also extremely light itself. At 375 grams, it is by far the lightest fork that fits GravelPlus tires. And to save even more weight, it comes with an extremely light 12mm Carbon-Ti custom axle.
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).
External cables & hoses collect dirt, risk getting stuck behind objects (particularly expensive with electronic shifting) and frankly, they are ugly. So the U.P. runs them internally.
With OPEN's proven MultiStop design, you can customize the frame for 2x10/11, 1x10/11 and Di2 shifting. Just pick the right insert. In case you run a single chainring, you can also remove the front derailleur hanger to further clean up the frame.
Frame: OPEN U.P.P.E.R (880g, Medium)
Fork: OPEN U-turn with 12mm thru-axle
Groupset: SRAM Force
Handlebar: Easton Ea70 AX Handlebar (Gravel King)
Stem: Easton Ea70 Aluminium Stem
Seatpost: Easton Ec70 Zero Carbon Post
Crank / Ring: Easton Ec90 S2 Crank BB 50
Wheels: Mavic Allroad Elite UST