Open U.P. 2.0 Adventure Chassis
In stock at 1 shop in New York City
Prices and stock checked Oct 22.
Where to buy
1 shopAbout this bike
Gerard Vroomen co-founded Cervélo, helped build one of the most recognized names in performance road cycling, and then stepped away to start something smaller and more deliberate. OPEN Cycle launched in Basel, Switzerland in 2012 with a stated philosophy of working hard to stay small — boutique manufacturing, intentional design, no shortcuts. The original U.P. (Unbeaten Path) followed in 2015 and became one of the most imitated gravel bikes ever made, its dropped drive-side chainstay and road-inspired geometry clearing tires that no performance frame had cleared before. The Open U.P. 2.0 Adventure Chassis is the second generation of that platform in its Adventure configuration — built for the rider who wants the U.P.'s road-informed handling with the added capability of cargo carry, dual wheel sizes, and mixed-terrain versatility.
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The frame is full carbon pre-preg, manufactured in Portugal, with a multi-modulus layup that assigns different fiber grades to different structural roles. High-modulus and ultra-high-modulus fibers run through the main tubes for stiffness and efficiency; lower-modulus, tougher carbon is used in the head tube area specifically to absorb impacts rather than concentrating them. The ultra-thin seatstays are a deliberate engineering choice — not a byproduct of weight reduction — designed to let the rear triangle absorb road and trail vibration in a way that a conventionally stiff seatstay cannot. Frame weight in size medium is approximately 995g. T47 threaded bottom bracket, a Universal Derailleur Hanger rear dropout for broad drivetrain compatibility, and fully internal cable routing complete the foundation. OPEN builds size-specific geometry into each of the five sizes rather than scaling a single template, so the handling character — quick, road-informed, precise — is consistent whether you're on an XS or an XL.
The Adventure chassis is defined by its U-Turn Adventure fork, which is what separates this build from the race-focused U.P.PER.…
