As seen in
Ride every road that calls you
The best $2999 carbon bicycle in the world
Bring the OB1 on every adventure. Get a sleek carbon bike with carbon wheels that you can take on road, gravel, cyclocross, touring, and bikepacking. It's a high-performance machine at a fraction of the usual price.
We created THESIS as an act of rebellion.
THESIS is a direct-to-consumer bicycle company based in California. Our name comes from a belief that thoughtful curation, evidence-based engineering, and operating with integrity, transparency, and inclusion are key to building a great bicycle company.
So we built personal relationships with the leading factories in the industry, and we cut out the traditional middlemen to bring you industry-leading bikes for an unheard of price.
THESIS is the brainchild of two best friends - former pro cyclist and Specialized product developer Randall R. Jacobs, and mission-driven entrepreneur Alice S. Liu - who want to change the cycling industry for the better.
We’re proud to partner with leading manufacturers, innovators, and advocacy organizations to advance cycling experiences and accessibility.
FROM THE FOUNDERS
The making of the OB1 on the Gravel Ride Podcast
We were honored to be featured on The Gravel Ride Podcast with host Craig Dalton this summer. Together we dig deep into the making of the OB1 and bust some bike industry myths along the way.
DESIGN THE PERFECT BIKE
Let's create your dream bike together
We know that finding the perfect bike can sometimes be overwhelming. That's why we offer personal one-on-one phone consultations.
Have a question on fit? Need help choosing the right build kit or configuration for how you ride? Let us help. We'll treat you like a friend and help you find the best bike for your needs, regardless of who makes it.
What our demo riders are saying
I’m a typical, skeptical mechanic. I’ve worked on and ridden every gimmicky bike in the book. I've never seen one this well thought out.
If you’re looking for one bike to do everything, this bike can do a lot. I can’t think of a trail or road where I wouldn’t have a ton of fun riding it. I could ride uphill forever on this thing!
Hands down some of the best people. If you’re looking into getting a bike... get in touch with Randall. His business and their mission are truly all about the end user and a flawless end product."
Usually a new bike feels a bit foreign, but the OB1 made sense to me from the second I strapped it on, even though I've never ridden a bike remotely like it. The bike was an intuitive fit from the first pedal stroke: the way the geometry felt, the way it responded to my inputs, the component choices and the way those components worked together.
Marc Mendoza, founder of Post Carry
Both the front and rear ends felt stiff under power when I needed it, like on the road bikes I’m used to, and it was just so fun to shred fire roads and singletrack.
Damn it. I don’t want to ride my regular bike now.