Boulder, CO

Mosaic Cycles is a family operated small batch builder of handmade bicycles. Precision fabrication and efficient business practice balance Mosaic as an industry leader, creating meaningful cycling moments and enduring products. Mosaic partners globally with select bicycle shops, bringing a tailored experience to each rider.

It’s easy to see why Mosaic is one of our favorite brands. Mosaic stands out for their flawless workmanship, thoughtful frame design and custom finish options. Titanium is the wonder material for subtle and distinct finishes; with no need to paint, the raw frame can be etched, polished, brushed. If you dream in color, Mosaic also offers the option of custom paint.

Mosaic’s range includes road bikes, gravel bikes, cyclocross and mountain bikes. Every bike is built to the rider’s exact specifications and desires. Each Mosaic starts with a full fitting and bio-mechanical assessment of the rider, so the bike becomes an extension of your body. Every aspect of the ride experience is considered and calculated for.

Some of our distinguished builds are featured below. These builds showcase some of the different models and build options.

The RT-1 is the bold road machine, designed with oversized tubes, and performance in mind. Double butted and custom tubing blend to give the frame a superbly smooth ride, good looks, and amazing responsiveness.

The GT-1 is the bike designed for adventure and for those who like to veer off the pavement and see what’s at the end of the dirt road. It is stable, robust, and perfectly tuned to float on rougher terrain. GT-1 frames are built with wider tires in mind (up to 38mm) so they can easily handle a wide variety of terrain and weather conditions.The bike can be equipped for racks and fenders for extended trips.

Available to demo:

Choosing Your Mosaic

Choosing Your Mosaic

If you want a bike that’s completely perfect for you, something that’s one of a kind, it’s time to talk about Made to Order Mosaic frames.

There are a host of reasons why people opt for a full-custom build. The great thing about a Made to Order frame is that it will do exactly what you need it to do. For some, it’s a matter of fit. Others have geometry and ride characteristics they prefer. And of course, if you want to really set it off, our finishwork program might be the most fun part.

Lead time for “Made to Order” frames is currently 6-8 weeks.

Three reasons why you should consider a Mosaic Made to Order Frame.


Mosaic Cycles now offers four “Batch Built” models: GT-2 45, GT-2 AR, RT-2D and MT-2. These frames are available in a standard size run from 48cm to 62cm with tested and proven geometry.

Just like “Made to Order” (custom) Mosaics, “Batch Built” frames are made by hand in Mosaic’s Colorado shop.

Best of all, thanks to Mosaic’s efficient build process, Batch Built frames are available in a 1-2 week turnaround.

When you order a “Batch Built” frame, [we help] you choose:
(1) Frame size
(2) Groupset configuration (mechanical, Di2, eTap)
(3) Mosaic Finishwork Progam (available as an upgrade)

Additional options like fender mounts, rack mounts, bento mounts, etc., are not available through the Batch Built program, but will always be available on a Made to Order frame.

If you’re thinking that a Batch Built frame might be for you, read on for a quick guide to Mosaic’s three available drop-bar Batch Built models: Is a Mosaic Batch Built Frame Right For You?


Take a tour of the Mosaic workshop, see how a frame is built.

It all begins with a bike fitting at Redbeard Bikes. Get in touch! Fill out our fit request form or email