Open Cycle
Open is a manufacturer of performance mountain bicycle frames based in Basel. Founded by Andy Kessler and Gerard Vroomen in 2012, the company debuted with a single model, the O-1.0. It was claimed to be the lightest 29-inch production hardtail on the market.
Special editions
Open have sold frames with paint designs created in collaboration with various other companies.| Collaboration | Number of frames | Other notes |
| Assos | 40 | |
| Yeti Cycles | 50+ | |
| DT Swiss | 30 | |
| Rapha | Only sold to Rapha Cycle Club members | |
| ENVE | 50 | Sold as a set with various Enve components. All frames were misnumbered 3/30 |
| Omata | 20 | Sold as a set with the Omata One cycling computer |
| SRAM AXS | 40 | Only sold as a complete bike |