--- title: Lennard Zinn bike design description: Lennard Zinn has been designing and building bikes for big and tall cyclists, petite women, cyclists with injuries, and everyone else since 1982. image: https://info.zinn.bike/hubfs/Custom%20Titanium%20gravel%20Hardin%20WEB-3.jpg --- - [clydesdale bicycles](https://www.zinn.bike/bikes/clydesdale-bicycles/) - [ZINN Custom Bikes](https://www.zinn.bike/) - [Tui Bikes](https://www.zinn.bike/bikes/tui-bikes/) - [303-499-4349](tel:303-499-4349) - [Login or Create account](https://www.bigandtallbike.com/myaccount.asp?__hstc=248507544.90448e05af5b6838a0b3ffd1e40c765f.1752502478952.1753346888326.1753362879282.6&__hssc=248507544.2.1753362879282&__hsfp=945770823) - [View Cart](https://www.bigandtallbike.com/message.asp?msg=49&__hstc=248507544.90448e05af5b6838a0b3ffd1e40c765f.1752502478952.1753346888326.1753362879282.6&__hssc=248507544.2.1753362879282&__hsfp=945770823) [![Zinn logo white](https://info.zinn.bike/hs-fs/hubfs/Zinn%20logo%20white.png?width=196&height=72&name=Zinn%20logo%20white.png)](https://www.zinn.bike/) [![Zinn logo 200px wide for checkout page](https://info.zinn.bike/hs-fs/hubfs/Zinn%20logo%20200px%20wide%20for%20checkout%20page.png?width=196&height=72&name=Zinn%20logo%20200px%20wide%20for%20checkout%20page.png "Zinn logo 200px wide for checkout page")](https://info.zinn.bike/?hsLang=en) - [Home](https://www.zinn.bike/) - [Contact Us](https://zinncycles.com/contact/) Open main navigation Close main navigation - [Home](https://www.zinn.bike/) - [Contact Us](https://zinncycles.com/contact/) ## Zinn Cycles Design Philosophy Since 1982, Lennard Zinn has designed custom bikes for riders of all sizes—including average sized riders, big and tall cyclists, petite women, riders with uncommon proportions, and those with injuries or limited mobility. Zinn customers include everyone from professional level racers to recreational riders. As the founder of Zinn Cycles, he builds bikes for people ranging from 4'7" to 7'5", earning a reputation as a leader in performance and durability for every body type. Working closely with Dr. Andy Pruitt, Lennard has created solutions for cyclists facing challenges like knee, back, or neck issues, ensuring everyone can ride comfortably and confidently. Proportionality is at the heart of all of our custom bike designs. Every aspect of our bikes are built to be proportional to the rider, including the frame, cranks, wheels, and cockpit components. We offer [cranks](https://zinncycles.com/custom-cranks/) from 140mm all the way up to 210mm, so we can properly fit any person in the world, no matter their size. Lennard has developed great frame design concepts to address and solve all of these issues and more. - ### Proportional Every Zinn bike is crafted to fit you perfectly. Lennard designs your entire bike—frame, crank length, wheel size, and cockpit—so every detail matches your body and riding style. - ### Durable We do not believe in planned obsolescence. A bike made by Zinn Cycles is built to last a lifetime.  - ### Comfortable Fit, performance, comfort, and durability will all be superior on a Zinn bike than a bike from any other designer out there. We guarantee it. - ### Lightweight A bike designed by Lennard Zinn will be stiff and strong while remaining lightweight. It will not shimmy at high speeds, and all of the [components](https://zinncycles.com/components/) will be proportional to the rider. ![Custom Titanium gravel Hardin WEB-1](https://info.zinn.bike/hs-fs/hubfs/Custom%20Titanium%20gravel%20Hardin%20WEB-1.jpg?width=2000&height=1333&name=Custom%20Titanium%20gravel%20Hardin%20WEB-1.jpg "Custom Titanium gravel Hardin WEB-1") ![Custom e-bike gen5 debbie stewart WEB-4](https://info.zinn.bike/hs-fs/hubfs/Custom%20e-bike%20gen5%20debbie%20stewart%20WEB-4.jpg?width=2000&height=1334&name=Custom%20e-bike%20gen5%20debbie%20stewart%20WEB-4.jpg "Custom e-bike gen5 debbie stewart WEB-4") ![Zinn logo orange 689x237 for ecom site](https://info.zinn.bike/hs-fs/hubfs/Zinn%20logo%20orange%20689x237%20for%20ecom%20site.png?width=633&height=231&name=Zinn%20logo%20orange%20689x237%20for%20ecom%20site.png) CONTACT 1655 Cannon Cir. Unit 100 Louisville, CO 80027 Phone: [(303) 499 4349](tel:+13034994349) © 2025 Zinn Inc. 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