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Ride every road that calls you
An adventure bike like no other
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.
DESIGN YOUR UNIQUE BIKE
Let's create the perfect bike for you
We know that finding a great bike can be overwhelming. That's why we offer personal one-on-one phone consults.
Have a question on fit? Looking for the right bike for your ride style? Let us help.
What our riders are saying
I fear I have developed a superiority complex because I see all other bikes, especially the $12,000 bling-bling road bikes, as ridiculous now. The impression I have is that if chased no one would ever catch me because I could just bunny hop over the curb and set off into woods before anyone even knew what happened. This bike screams capability.
Exceeds all expectations. The bike is basically perfect. Smashed a bunch of PRs with my out of shape for the holidays legs. Due in part to its just so damn fun to ride. Joy = speed it seems. This thing is a thoroughbred.
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.
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."
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!
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.