
Mountain Bikes
Based in Boulder, Colorado we love mountain biking. We are surrounded for hundreds of miles by some of the most classic mountain bike trails in the world. We offer mountain bikes for everyone, from 4'8" to 7'5".Read more.
We make trips to Crested Butte, Moab, Durango, Fruita, and many other classic mountain bike destinations every year. On these trips, we test out new mountain bike designs so that we can provide you with the best mountain bikes possible. While we are mostly known for our XL mountain bikes and even bigger sizes, we offer mountain bikes for everyone, even short and average height people.
All Zinn custom and semi-custom mountain bikes are made right here in Colorado with American materials. Each frame is precision crafted by the best artisans in the industry. We offer Titanium and Steel hardtail mountain bikes as well as premium handmade aluminum full suspension mountain bikes.
Get Fitted
The best mountain bike for heavy riders also means you get a great fitting bike. No matter where you live, we’ll make a fitting session happen. You can visit us in person at our Boulder, Colorado location, or you can set up a video fit session with us. We also provide detailed measurement instructions for simple online submission.
Unique Bike Design
At Zinn Cycles, we have a specialized design philosophy that addresses everything from the best mountain bikes for heavy riders to the most petite bikes in our lineup. Because we’ve been designing and building bikes since 1982, we’ve learned how to accommodate cyclists of every size, shape, and ability level. We’re one of the few companies in the world that works towards improving the riding experience for literally everyone, including women, special sizing needs, and physical impairments. With our upgraded Silver and Gold Medal Fits, we’ve managed to address cyclist concerns for those who suffer from injuries, chronic pain, reduced mobility, and tons of other health issues.
How We Build Bikes
There’s so much more to building a custom bike than most people imagine. We don’t just scale frames up or down to meet your sizing needs – our team considers every single component, from the position of the handlebars to the length of the fork and proportion of the cranks. So when you choose Zinn Cycles, you’re getting a bike that’s proportional, lightweight, and ultra-stiff. Enjoy more comfort, better performance, and enhanced durability with a bike from Zinn Cycles.