Gravel
OPEN U.P. / U.P.PER. (first gen)
2016 · 700c wheels · 4 sizes
The first-generation OPEN U.P. and its lighter U.P.PER. sibling, the carbon frames that helped define fast gravel riding. Both share one frame geometry and take either 700c road and gravel tyres or 650b mountain bike tyres. They are still sold as framesets only. OPEN calls the lengths estimates, and standover is measured above the bottom bracket, so it varies with tyre size.
Source: opencycle.com/open-upper
I ride:
Size run
Published geometry by size. How each size rides and fits for your rider profile loads with the page.
| Size | S | M | L | XL |
|---|---|---|---|---|
| Stack (mm) | 522 | 551 | 580 | 604 |
| Reach (mm) | 365 | 376 | 387 | 401 |
| Head angle (°) | 69.5 | 71.0 | 72.5 | 72.5 |
| Seat angle (°) | 72.5 | 72.5 | 72.5 | 72.5 |