Introducing OB1 by THESIS.

Obsessively curated. Factory direct.

How we built a $2999 high-end carbon dream bike

As seen in

Your dream bike has arrived.

Meet the OB1

How It Works

1. Choose your OB1

Choose your frame size and color. Select one of our build kits, or go custom.

Select your OB1

2. Production

We order your customized components directly from the industry's top factories, skipping the middlemen.

Behind the scenes

3. Assembly & Fit

Your 80% unassembled bike arrives on your doorstep. Bring it to your local mechanic to invest in a professional build and basic fit (typically $249-$329).

Learn more


Let's reimagine how bicycles are built.

See our approach

Our Roots

Meet our team


The making of the OB1 on the Gravel Ride Podcast

Listen now

Go behind the scenes on Instagram @thesisbike

Ride with us on Strava @thesisbike