OPEN Cycles U.P.(P.E.R.) Frameset

Fast, Fun, Freedom

The U.P. started the fast gravel category by combining road bike speed with go-anywhere tires & geometry. With its dropped chainstay for more tire clearance and dual wheel size compatibility, the U.P.(P.E.R.) became the de facto standard for performance gravel bikes.

What's U.P.?

The road position lets you get out of town quickly (unlike a mountain bike). Space for big tires gives you grip on tougher terrain (unlike a road bike).
Get one set of all-round tires or dedicated wheelsets for fast & tough terrain.

Available in 2 versions.

U.P. and U.P.P.E.R. differ only in weight (180g less for the U.P.P.E.R.) and color (many options vs just matte black)*.
Both also come in RTP (Ready-To-Paint) so you can have it custom-painted.

Tire Clearance

U.P. can fly like a road bike with a 700x28c tire or play like a dropbar mountain bike with a chunky 27.5x2.1". So whether you ride it with road or mountain bike tires, on pavement or off-road, you always experience agile, responsive and confident handling.

Dropped Chainstay

Probably the most copied feature of the original U.P. (we're quite proud :-). Chainring(s), frame and tire all fight for space just behind the bottom bracket. The dropped chainstay gets around the chainring and away from the tire, thus increasing tire clearance. The result? Space for big (mountain bike) tires without needing wide cranks. So you can run road cranks with a low Q-factor (pedal stance) for the best pedaling efficiency.

Our carbon layup

So many marketing claims about carbon. But the truth is quite simple.

- Every bike company has access to the same carbon. Compared to industries like aviation, carbon volume for bikes is too small for custom or exclusive. So all those different names for proprietary carbon are just that, names.

- What matters: high-modulus carbon is stiff but brittle, low-modulus carbon is more flexible but tougher. You need stiff and tough, so the best layup is a blend and the ratio depends on what is most important in each area of the frame.

- In some areas (main tubes for example), the blend has more high modulus (and even ultra-high modulus) carbon. Other areas (headtube for example) use more of the tough carbon. That’s how our frames are both light and durable.

U–Turn

The U-Turn has tire clearance in abundance. It’s also very light, thanks to another OPEN innovation: Smartmount.

Standard, the bike industry uses four bolts plus an adaptor to attach the brake caliper to the fork. This allows for flipping between 140mm and 160mm rotors.

However, SRAM and Shimano both always recommend 160mm for the front, so we remove the adaptor and two bolts to attach the caliper directly onto the fork for that rotor size.

This makes the setup lighter, stiffer, safer. (Check our Specifications for the correct bolt lengths for each setup.)

This design also cleans up the U-Turn fork legs and allows us to make a very light structure with very tunable stiffness and strength.

Design is in the details

Wire-Stays - Vertically thin chainstays and seatstays provide compliance, while their lateral width and layup ensure rock-solid propulsion. Truly the best of both worlds.

Flat-Out Downtube - The downtube drives stiffness, connecting your steering center to your drivetrain. The flat sides places strips of ultra-high modulus carbon where it matters most.

Zero-Setback Seattube - A zero-offset seatpost is lighter & more efficient, so we have designed our seattube angle such that most riders can use a zero-offset rather than an off-set seatpost.

Internal Routing Internal cables & hoses through the frame stay clean & protected and frankly, they look better. In the cockpit we leave them exposed for easy maintenance.

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The OPEN U.P(P.E.R.) frame and fork can be sold as is, or we can work with you to create your dream bike...give us a call at 612-722-1538 to discuss options.
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