| Private | |
| Industry | Bicycles |
| Founded | 2012 |
| Founder |
Andy Kessler Gerard Vroomen |
| Headquarters | Basel, Switzerland |
| Products | Mountain bicycles |
| Website | www |
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.