OPEN UP Unbeaten Path Force 1 Bike


OPEN UP Unbeaten Path Force 1 Bike

Brand: OPEN

Frame available. 
Contact us for estimated build times.

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Product Description

The OPEN U.P. Unbeaten Path Force 1 Bike build is the dream gravel bike build is the final word for anyone looking for a 1x drivetrain. Paired to the veritable OPEN U.P frameset, we are proud to offer the U.P. as one of our go-to choices in the gravel bike world.

The OPEN U.P. Unbeaten Path Force 1 Bike uses the New U.P. frameset as a starting point, with the option to build it in whatever way necessary. The New U.P. Frameset saves 60g at the frame thanks to flat mount disc brake mounts, and another 70g from the OPEN U-Turn carbon fork, shared with the luxe U.P.P.E.R. frameset. The U.P. frame fits up to 27.5 x 2.1” mountain bike tires, 700 x 40c gravel tires, or anything in between. The U.P does this while also allowing for short 420mm chainstays (shortest in class) and stack and reach geometry numbers that are closer to an endurance road bike than a honkin’ gravel or touring bike. Few bikes achieve true jack of all trades status, but the OPEN U.P. comes delightfully close.

The Unbeaten Path (U.P) is all about versatility, so we’ve hand selected parts that are plenty reliable for cyclocross, road riding, fire roads, or singletrack. The SRAM Force 1 drivetrain offers exceptional performance, thanks to a wide range 10-42t cassette, low weight, and reliable hydraulic disc brakes. We use an Easton alloy cockpit and seatpost as a starting point, with a Fabric Scoop saddle alongside. Stan’s No Tubes is synonymous with light weight tubeless wheel and tire setups, and our two preferred wheelsets, the Stan’s Grail S1 wheelset for 700c or the Stan’s Crest S1 wheelset for 27.5”, provide an excellent combination of reliability, stiffness, and low weight. 700c wheels save weight and roll better on smoother surfaces, while the 27.5” mountain bike wheelset offer additional durability for rougher trails, and their extra width gives knobbies better bite and a plusher ride.

Whether you’re heading to Salt Lake City, or prefer we ship your OPEN U.P. Unbeaten Path Force 1 Bike to you, we’ll do a full, professional bike build, dialing in shifting and braking, truing wheels, etc. If you’re unsure about sizing, give us a call or email us at to talk through geometry and fit. And although this is a “stock bike,” we are more than happy to discuss options of this build.



Open Up Geometry Image

size S M L XL
rider height¹ 5’2"-5’8" 5’7"-5’11" 5’10"-6’3" 6’2"-6’7"
stack 522 551 580 604
reach 365 376 387 401
standover² 743 767 791 815
headtube angle 69.5° 71.0° 72.5° 72.5°
headtube length 105 130 155 180
fork offset 50 50 50 50
seattube length 520 540 560 580
seattube angle 72.5° 72.5° 72.5° 72.5°
seattube angle (norm.³) 74° 73.5° 73.5° 73.5°
toptube length 528 549 570 591
toptube length (norm.³) 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


SRAM Force 1x11
Frameset OPEN U.P. Unbeaten Path
Shifters SRAM Force HRD Shift-Brake Control
Crankset SRAM Force 1 Carbon w/42T Chainring (specify length)
Front Derailleur N/A
Rear Derailleur SRAM Force 1 Long Cage
Disc Brake Calipers SRAM Force Hydraulic Calipers
Rotors SRAM CenterLine 160mm Front/Rear
Cassette SRAM PG-1130 11/42T
Chain SRAM PC-1170 C
Handlebar Easton EA50 Compact (specify width)
Stem Easton EA50 +/- 8 degree (specify length)
Seatpost Easton EA50 with 10mm setback
Saddle Fabric Scoop Elite Black
Wheelset Stan's Grail S1 Tubeless (700c)
Tires Maxxis Rambler 700x38c Tubeless (700c)