Zinn Cycles

Zinn Cycles builds custom road, gravel, mountain, and touring bikes one at a time, shaping each frame to the rider's body geometry, riding style, and any physical limitations. The shop also sells semi-custom and off-the-shelf bikes, including the Clydesdale line for big and tall riders and the Tui line for small to medium riders, along with custom wheels, cranks, and components.

Customers can submit measurements online or come into the bike fit studio for an in-person fitting before a custom frame goes into production. Repairs, chain waxing, rentals and demos, and help with coaching, group rides, or adventure cycling tours are also available. The shop is at 1655 Cannon Circle in Louisville, Colorado, and ships worldwide.