Perfecting Custom Bikes since 1982
At Zinn Cycles, when we say custom, we mean it. Your custom Zinn bike will be completely optimized for you from start to finish. The geometry, tube selection, aesthetics, and components are carefully selected for your size, weight, mobility restrictions, riding style, and preferences. Every custom frame is built one at a time by our veteran framebuilders with the highest level of precision and assembled from the ground up using cutting edge components and expertise.
We also offer a full line of semi-custom and off the shelf bikes for riders from very small to very tall and everyone in-between. Our Clydesdale brand offers unbreakable bikes for big and tall riders at a more affordable price than a custom bike. Our Tui brand brings excellent lightweight bikes that are fully proportional for small to medium sized riders. We have also partnered with KHS to design and produce non custom gravel and mountain bikes for big and tall riders.
We make every type of bike including gravel bikes, road bikes, mountain bikes, e-bikes, touring bikes, hybrids, tandems, track bikes, travel bikes, fat bikes, and more.
Fit
Every bike starts with a great fit. No matter where you are in the world, we will work with you to ensure the perfect fit of your custom or semi-custom bike. You can submit measurements online or come into our bike fit studio for a professional fitting. We will consult with you to understand your body geometry and riding style as well as any physical limitations so that you can get the most efficient and comfortable fit.
Design
Lennard’s many decades of bike fit and design experience mean that you will have a custom bike that is completely optimized to your body geometry, weight, riding style, and aesthetics. We take all factors into account including fitness level, riding goals, physical limitations, and desired riding position to create a 2D CAD drawing of your new custom bike before it goes into the production process.
Build
Our framebuilders have over 100 years of combined experience and expertise in their specialized materials, and the quality of craftsmanship shines in every Zinn frame. We customize the aesthetics of the frame using specialty finishing techniques or custom paint designs to make your bike unique and beautiful. Our professional mechanics assemble each bike in our shop to perfection.
Ride
Your custom bike is meant to be ridden! We want you to love riding your bike for many years. We are here to help you achieve your cycling goals after you get your bike and for years down the road. We can help you maintain your bike so it lasts forever, and we can also help you with coaching, group rides, or adventure cycling tours so that you get the most out of your custom bike experience.
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. 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
Find out 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.”
The cranks were awesome – she got 2nd place! I think she was on a mission at this race and surprised us all in the first lap by keeping on the back tire of the leader who’s been dominating every race. She finished less than a minute behind her which is pretty amazing. I do think the bike fit has made a huge difference, and she’s been loving her bike more and more.
Finally got the frame built up and completed. Went out on maiden voyage this week with my group of fellow riders. This bike is a rocket. Every ounce of energy put into the pedals propels the bike forward. On a group ride this week I was freewheeling quite a bit because this bike hauls butt. It should be against the law on how fast this thing is….I love it!
Many thanks to all of you!
Thank you for being so helpful with my road/gravel bike. The fit is perfect, the ride is excellent, and it looks great. With the longer cranks, my pedal stroke feels smoother and more efficient. I had looked at Zinn frames for years and am glad I have one now. The wait was well worth it!!
The eBike is working great. I have a Zinn eBike and a Zinn non-eBike and I truly appreciate them as the best fitting bikes I’ve had. I think I am set on bikes right now, but eventually will get another…
Shop by Bike Type
Every cyclist has their own preference. Whether you love riding road or gravel bikes, are looking for ease and convenience with a new e-bike, or want to ride technical singletrack mountain bike trails, Zinn Cycles has the type of bike 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 or bike fitter to meet your needs.
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.
