Category Archives: Mosaic Bicycles

Mosaic’s philosophy is simple: they build bicycles that perform. A bicycle should match the needs of its rider’s body geometry, perform to its rider’s cycling goals and objectives, and should be aesthetically pleasing. They use these three guidelines to create frames that meet your individual needs and desires on a very personal level. They believe a bicycle is more than a piece of equipment; it is an extension of its rider. If you can dream it, we can build it – it’s that simple.

Head Builder Aaron Barcheck started dreaming about frame building while racing juniors in St. Louis, Missouri. He built his first titanium frame at the United Bicycle Institute, then spent seven years honing his craft as head builder and welder at Dean Titanium Bicycles.

Stop by at our shop to talk about how The Hub and Mosaic can produce a bike that will exactly fit your dreams.

Mosaic RT-1, Full-paint titanium with a lightweight Ultegra build

Mosaic RT1 3

This titanium Mosaic is a custom RT-1, and uses their top-of-the-line frameset. The RT-1 features size-specific butted tubing, a tapered-steerer Enve Road 2.0 fork, and an oversized 44mm headtube. The lucky owner of this bike chose to give the frame full-paint, and to have the fork matching as well. As usual, the folks at Mosaic do impeccable work … the welds are super clean! The stainless steel headbadge looks great against the paint. Custom geometry was a must for this rider to get the handlebar in the correct location. This RT-1 uses an integrated seatpost, which will add some shock … Continue reading

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Mosaic RT1 Titanium Endurance Bike, with road disc brakes

Mosaic RT1 1.3

Here is a Mosaic that we put together for a local rider. Mosaic includes custom geometry on all of their frames, and we used that ultimate control to shape the bike into one designed for long-distance comfort. It can fit up to 32mm width tires, and can accept front and rear luggage racks. Aaron Barcheck at Mosaic does immaculate weld work on his frames. You can get as close as you like to the beads, and still you won’t see anything but smoothness. Notice how the bolts that hold the disc brake caliper to the frame thread into a small … Continue reading

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Custom Mosaic RT-1, shown in 2013 NAHBS!


This beautiful custom Mosaic RT-1 is as good as it gets! The butted Ti frame is handbuilt in Boulder, Colorado and has a unique paint job done by Spectrum Cycles. All Mosaic frames are custom built to a riders body proportions, so the fit is perfect! This particular Mosaic was used as a show-bike by Mosaic in the 2013 NAHBS (North American Handuilt Bicycle Show). Mosaic won a “best cyclocross of show” award for a cross bike that has similar construction to this RT-1. Mosaic uses an oversized 44mm titanium headtube that they machine in-house. The seatstays are elegantly thin … Continue reading

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