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Open U.P. Frameset

  • Medium and Large Demo bikes available, call to book
  • Will take 700c wheels with road or CX tyres, and 650b MTB wheels with 2.1" tyres
  • Dialled geometry for all setups and riders thanks to Gerard Vroomen of Cervélo fame
  • Only 1,150 grams for the frameset; ask us for recommendations on build specification

Product Information

Open U.P. Frameset

One of our favourite bikes of all-time here at The Tri Store, the U.P. handles everything from road to off-road with ease. Buy two sets of wheels (700c and 650b) and you can forget n+1, this will just become your go-to bike for everything!

We took delivery of one of the first Unbeaten Path frames in the UK and now two of us here own them and ride them every day. We have great experience of the options for building the OPEN U.P. with different speciafications so check out our ready to ride builds or contact us for custom options.


Full Specification

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.

TRCinTRS™ technology

“100% hi-modulus carbon”, “aero-space grade”, etc. Useless – and hopefully false (we’ll get to that) – claims meant to impress you.

It’s not about high- or low-modulus, it’s about the right carbon in the right spot. And because the bike industry loves techie-sounding abbreviations, we’ll humor them and call it TRCinTRS™.

Fact: stiffer carbon is more brittle. Strategically placed ultra-high-modulus carbon is a good idea. Making the whole headtube out of it when you have big impact loads is not!

The best lay-up is not 100% of one modulus; it’s a blend. We use the highest modulus (stiffest) carbon of any bike manufacturer where we can, and tougher grades of carbon where we must. That’s how our frames are both light and durable.

Frame: OPEN U.P.
Frame sizes: S, M, L, XL
Frame weight: 1150g
BB std: BB386EVO
Chainring fit: Max inner ring: 36t
Max outer ring: 50t (more is overkill with the bigger tires)
Max single ring: 46t (offset rings like SRAM 1x)
Max single ring: 50t (flat rings, better cassette alignment)
Headset std: Integrated Tapered IS42/28.6 | IS52/40
Seatpost Ø: 27.2mm
Rear axle std: 142x12mm thru axle
Rear brake std: Post mount for 160mm disc
Cable routing: Internal via exchangeable MultiStops for 1x10/11, 2x10/11, Di2
Bag mount: 100mm front-post-to-bearing-bore-edge
Incl. in box: Frame, fork, seattube collar, front thru-axle, spare rear derailleur hanger

Size Guide


Was: £2,230

Now: £1,899


ASK US: [email protected]

CALL US: +44 (0)1323 417071



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Lawrence Neill

Lawrence Neill Says

Mine might be fluoro pink but I love my U.P. as it can be used for everything from a road ride through to proper off-road riding on the South Downs Way with two sets of wheels10/10