Your dream bike has arrived.
OB1 is the one bike you'll take on every road. It’s a sleek road bike that shreds gravel, and a CX racer that loves to travel. It packs a carbon frameset, a choice of road or gravel carbon wheels, and an uncompromisingly curated component spec that won’t let you down.
It's the dream bike we built for ourselves, and we want you to have it too -- at a fraction of the usual cost.
How It Works
Let's reimagine how bicycles are built.
THESIS is a direct-to-consumer bicycle company based in California. Our name comes from a belief that by rejecting the industry's marketing gimmickry, hidden corner-cutting, and layers of middlemen, we can deliver a superior cycling experience for a fraction of the cost.
We don't pretend that aero is everything, that acronyms are innovation, or that you need a stable of specialized bicycles. Instead, we work directly with the same factories the big brands use to deliver one uncompromisingly curated, custom fit bicycle that's ready for every road that calls you.
THESIS is the brainchild of Randall R. Jacobs, a former professional cyclist, serial entrepreneur, Mandarin-speaker, and supply chain architect who has spent the past 17 years building and riding bicycles for a number of industry players. We’re proud to partner with leading manufacturers, innovators, and advocacy organizations to advance cycling experiences and accessibility.