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eZinn | Custom eBikes

Custom eBike Frames & More!

Lennard has been riding a custom eZinn titanium e-bike since January of 2018 due to his heart arrhythmias that have been keeping him from doing the long mountain rides that he so loves. The e-bike has been a life changer for him. It has enabled him to, once again, ride with friends through the Colorado Rockies and commute around Boulder without worrying about his heart. We believe that the e-bike revolution is here, and it’s going to help get more people on bikes who otherwise may not be able to ride anymore for health reasons or age. E-bikes are also an excellent way to lose weight since they allow you to do long rides at moderate effort, which burns more fat than carbohydrates. Lennard also wrote an article for Velonews magazine about the benefits of e-bikes. Here is a link to that article.

In January of 2018, Lennard Zinn transitioned to riding titanium ebikes because of his heart arrhythmias. These heart irregularities were preventing him from going on long road and mountain bike rides that he loves so much, and he couldn’t wait to find an answer that would let him ride again! The solution was an assisted bike that got him back on the road and back to riding with his friends. With his custom ebike, Lennard’s been able to commute around Boulder and ride through the Colorado Rockies without worrying about his heart too much!

eBikes are the basis of a new revolution! These types of road bikes are going to get more people riding than ever before. Anyone who isn’t able to hop on a bike due to age or health reasons won’t be held back any more. Because an ebike is merely an assisted bike, you can still get all the benefits of exercise and weight loss without risking injury or overexertion. Take on longer rides with only moderate effort to burn fat and discover an alternative to hitting the road in a car!

Are you ready to see how a custom ebike can change your life? Explore our ebike frames and more here:

Lightweight Titanium E-bikes

Every e-bike we make is totally custom, so we welcome your ideas and custom requests. We want to build your dream e-bike! During the past few years, we have built numerous unique custom e-bikes for some of our long time and newer customers. We have done electric mountain bikes, gravel bikes, road bikes, touring bikes, travel bikes, and even 32-inch wheel bikes or 32ers. All custom eZinn e-bikes are built with the Bosch Generation 4 motor, which reduces weight over the older Generation 2 motors by about 3 lbs. The new motor also has increased torque (85nm), and increased Max Power (790W). We have even developed a system to allow for dual batteries inside the frame, on some of our taller bikes. Zinn Titanium eBikes are quite lightweight as compared to most production e-bikes with equivalent power and torque. We built a 29+ eMTB for a 6’8″ 275lb rider that weighed in at 44lbs and our Titanium Gravel e-bikes are always under 40lbs and even as light as 35lbs depending on size and component options. We also offer non-custom titanium e-bikes from our sister brand, Clydesdale Bicycles that are very nice and hit a lower price-point than a full custom ebike. Click here for more information.

Your Ideas & Requests

Every custom ebike we make is totally personalized, so we welcome your unique ideas and requests. Our team wants to build your dream titanium or chromoly ebike. During the past few years, we’ve custom-built numerous ebikes for some of our long-time customers and newer shoppers. From electric mountain bikes, gravel bikes, and road bikes to touring bikes, travel bikes, ebikes with Rohloff hubs, and even 32” wheel bikes, we’ve done it all!

Some eBike Specifications

We design and build our eBikes to ride and perform like one of our custom analog bikes. You will hardly be able to tell it’s an ebike until you feel the power of the Bosch Motor. All custom eZinn titanium ebikes are built with the Bosch Generation 4 motor, which reduces weight over the older Generation 2 motors by about 3 lbs. The new motor also has increased torque (85 nm), and increased Max Power (790W).

We also developed a system to allow for dual batteries inside the frame on some of our taller bikes. As a result, Zinn ebikes are quite lightweight when compared to most production ebikes with equivalent power and torque. We built a 29+ eMTB for a 6’8″ 275lb rider that weighed in at 44lbs, and our Titanium Gravel ebikes are always under 40lbs, and even as light as 34lbs, depending on size and component options. While there are other extremely lightweight ebikes out there, none of them have the full power and range you get with a custom eZinn electric bike with bosch ebike system.

E-Bikes for small riders

By Lennard Zinn In the new world of e-bikes, cyclists under 5'5" are stuck with an array of clunky and heavy bikes that feel like some rendition of our [...]

Fall Colors Gravel Ride Report

By Lennard Zinn Nick and I and Cleo, the Zinn Cycles shop dog, woke up on Saturday, October 7, 2023, to a cloudless and rapidly warming Colorado bluebird day [...]

eZinn

Frame & Technology

Every element of our ebikes is consistent with our original technology and design philosophy. Check out the details of our custom ebike frames and options here:

Bike fitting

Bike fitting included with every Zinn bike frame

Design

Our Design Philosophy

It doesn’t matter where you live, if you choose to work with Zinn Cycles on a custom ebike or ebike frame, we’ll be there for you. Our in-house bike fitting service is perfect for anyone who lives in Boulder, Colorado, but we also offer detailed measuring instructions and guidance for anyone who doesn’t live in the area. We even work with bike fitters near you to ensure you get the most accurate measurements. Come into our shop, take your own custom ebike measurements, or schedule an appointment for Retul bike fittings today!
When it comes to our design philosophy, there’s a lot to cover. It all starts with Lennard Zinn, the man who’s been designing and building bikes since 1982. He has experience with big and tall cyclists, petite riders, cyclists with injuries, and every other unique rider requirement. He’s one of the few bike designers in the world who has dedicated his life to improving ride performance for every type of rider!

Lennard has also worked with Dr. Andy Pruitt for many years to help riders who have knee and back problems, neck pain, reduced mobility, and so much more! We’re not just here to scale custom ebike frames up or down to fit your height. Our team ensures every part of the bike is proportional to itself and to your body specifically. We minimize the shimmy from stretched tubes, lighten the bike with a titanium ebike frame, ensure the handlebars are the perfect height for your reach, and guarantee proportional crank length for comfortable riding. No matter your issue or area of concern, Lennard has thought about it and developed a solution!

Make it a Travel Bike

Add S&S Couplers for easy travel

Order a Custom eBike Now!

Are you excited about adding an ebike to your collection? Submit your measurements online or come in for a fitting to start the process. After you submit all your details, you will need to pay a deposit before we start work on our end. Once we have your measurements and deposit, we’ll contact you for any additional data we need before creating a CAD drawing for your bike. Then, we’ll send it to you for review before manufacturing. Soon, your bike will be right at your front door!

eZinn – Custom E-bike

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Are You Ready for Your Dream Bike?

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