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Your dream bike has arrived.
OB1 is the one bike you'll take on every road. It’s a sleek carbon bike that shreds gravel, hammers on road, and loves to travel. It packs a carbon frameset, a choice of road or gravel carbon wheels, and an uncompromising 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.
high-end wheels at a steal
New: Graphene-infused carbon wheelsets
Our Ultra-Wide Carbon 650B and Aero Wide Carbon 700C were designed for serious enthusiasts seeking strong, versatile, responsive wheels. Optimized for performance, durability, and serviceability, these hoops are made to last for years.
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 thoughtful curation, evidence-based engineering, and operating with transparency and integrity 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.
Join our mission
Become a Brand Ambassador
We're looking for cyclists who are positive leaders in their community to ride with us.