Custom Bikes at Zinn Cycles
At Zinn Cycles, our goal is to deliver top-quality custom bikes for people who need or want a little extra modification and customization for their bicycles, whether you’re an experienced pro or just getting into the joy of riding.
No matter if you’re big, tall, or small, our team can create a bike that’s based specifically on your unique proportions. With our cutting-edge, precision engineering and ultra-durable, lightweight materials, a custom bicycle from us delivers more comfort, power, and performance than you ever thought possible.
Explore our bikes by type to find the one that meets your needs today.
About us
Designing Custom Bicycles Since 1982
At Zinn Cycles, we’ve been working to make cycling a more enjoyable experience for everyone and every body since 1982. For the past 39+ years and under the expertise of Lennard Zinn, our team has developed custom bikes that fit right, perform well, and consider the cycling desires of every customer. Our commitment to deliver a better ride is at the core of everything we do. We put our heart and soul into the frames, cranks, and forks of each and every bike.
Learn about our history, design process, and fitting methods:
Online Store
Cycling products to help you fit and ride better on your bike.
Zinn Cycles offers more than just custom bikes! Find unique cycling shirts and components that just aren’t available anywhere else. Do you need cranks in lengths from 130mm to 220mm? We’ve got them! Looking for big and tall cycling clothing, custom handlebars, or specially made wheels? Find everything you want right here.
Customer Testimonials
Are you wondering how our customers are enjoying their custom bicycles?
Check out what they have to say:
“Lennard:Thanks for the awesome work on my bike! It of course looks terrific, but getting on it was what impressed me most. It immediately felt different, and better. The pedal stroke is incredibly smooth. I swapped it out for my other tri bike on my computrainer and did the same ride I had done last night. I was putting out about 30 watts more power at a lower HR than the ride the night before and that translated to a faster, but easier ride.”
“Gentlemen,Yesterday was the first ride on the Sequoia that you built up for me. I’ve been dreaming about this bike for more than five years and it has lived up to the expectations! Its first ride was just what I had envisioned for it. On pavement it was smooth and fast. On the gravel logging road outside of town it climbed beautifully. Cornering on the descents was solid. This is the first time I’ve ridden a bike that felt so stable in the turns. Even riding no hands was a breeze. Thanks for a great ride!Best regards,”
“I am really pleased with the handling and ride of the travel bike after doing 80Km with my normal group ride yesterday. After having read several of you articles about head angle and designing for a big rider your bikes are as advertised. The rear end is very stable on the climbs and tracking on descents is confidence inspiring. The 205mm crank were a real topic of discussion on the ride. I felt like on the long steady climbs they gave me an extra gear or two before I felt my heart rate go into the red. For the first time on a routine route I never dropped down into the bail out small chain ring.”
“Hi all,I wanted to follow back up to tell you how much I’ve been enjoying my BIG bike.We flagged the UPS truck down last Thursday early afternoon. My son and I had it assembled in a couple of hours. I really appreciated how completely prepared the disassembled bike was—just the right number of spacers for the headset for example, cables already set up.We then went for our first spin—delightful.”
Shop by Bike Type
Every cycling enthusiast has their own preference. Whether you love riding on the open road, are looking for ease and convenience with a new e-bike, or you crave the challenge of mountain trails, Zinn Cycles has the bike types you’re looking for.
Check out the different bicycle styles we offer to ensure you get the most out of every ride.
No matter where you live, Zinn Cycles will work with you to ensure that your custom bike fits you perfectly. Our full-service, in-house fitting accommodates anyone who can make it to our Boulder, Colorado facility.
If you don’t live in Colorado, don’t worry! You can still get a custom bike online with our other fitting options. We offer detailed measuring instructions for anyone purchasing their bike from afar.
Don’t want to measure yourself, but know a bike fitter near you? We’re happy to work directly with a local shop to meet your needs.
Images
Custom Bicycles Photo Gallery
Ready to see exactly what we can deliver? Browse our bicycle gallery to discover what we’ve created for other customers. Check out bikes from people who visited us at the
Boulder RETUL Center as well as bikes custom ordered online.
News
Latest blogs
Custom bikes are our passion. In addition to fitting and building bikes for customers, we also love talking about bikes all the time. Read our blog to gain technical insights, get your questions answered, and discover new cycling trends today.
