OPEN U.P.P.E.R. Black Gravel Frameset

Regular price £4,200.00

Tax included.


Are you looking for a higher-end gravel frame, with a well-thought-out design and endless mounting possibilities? The OPEN U.P.P.E.R. Black Gravel Frameset is the top of the range model from the innovative company OPEN; their family of U.P. (Unbeaten Path) have appeared in countless magazines and won awards such as the Eurobike Gold Award. It includes the best of two worlds (road and MTB): the sporty position of the road bikes to go fast and the compatibility with 650b mountain tyres of up to 54mm.

For the U.P.P.E.R., the designers of OPEN did not limit themselves to adapting a bit the successful U.P. model, but they redesigned the frame and its carbon layers entyrely to be able to improve its lightness and rigidity even more. They managed to save 160g on the frame and 20g on the fork. Therefore, the frame only weighs 880g and the fork 370g.

Other examples of the benefits offered are the internal wiring, the possibility of mounting disc brakes and to attach bottles or luggage in the upper tube and the indication of minimum insertion in the seat tube (not only in the seatpost). It perfectly combines functionality and aesthetics in the design, to which is added the elegant black of the U.P.P.E.R. Do you want to miss one of the most versatile and highest quality gravel bicycle frames on the market?


OPEN U.P.P.E.R. Gravel Frameset - Black:

  • Frame material: High-modulus (HM) and high resistance (HR) carbon.
  • Frame weight: 880 g (size M).
  • Fork: OPEN U-turn for flatmount, no need for adaptor.
  • Fork weight: 370 g.
  • Dropouts: For 12mm Thru axles, same threads for rear derailleur.
  • Tyre Clearance: 650B and 700C up to 40mm.
  • Compatible Seatpost: Straight, 27.2mm. Not included.
  • Bottom bracket: BB 386 EVO pressfit 86x46mm.
  • Axles: Superlight Carbon-Ti 12mm.
  • Includes: Frame, fork, headset, seattube collar, front & rear thru-axle, 2 rear derailleur hangers, 1 removable front derailleur mount, cover bolts for front derailleur mount posts, 3 MultiStops (2x, 1x, Di2), chainstay cable exit stop, BB guide, cable sleeves, noise-reduction foam sleeves, bottle cage bolts, manual.


RIDER HEIGHT 1 157-170 168-180 178-191 188-201
STACK 522 551 580 604
STANDOVER 2 743 767 791 815
REACH 365 376 387 401
HEADTUBE ANGLE 69.5° 71° 72.5° 72.5°
HEADTUBE LENGTH 105 130 155 180
FORK OFFSET 50 50 50 50
SEATTUBE LENGTH 500 540 560 580
SEATTUBE ANGLE 72.5° 72.5° 72.5° 72.5°
SEATTUBE ANGLE (NORM.) 3 74.0° 73.5° 73.5° 73.5°
TOPTUBE LENGTH 528 549 570 591
TOPTUBE LENGTH (NORM.) 4 514 540 560 581
BB DROP 70 70 70 70
FRONT CENTER 592 598 604 622
REAR CENTER 420 420 420 420
WHEELBASE 1002 1008 1014 1032