Most bikes are built to fit a category. A 1-Level Mosaic is built to fit you in every way possible. Handcrafted in Boulder, Colorado, each frame starts with a blank slate and ends with a bike that rides, fits, and looks like no other—because it’s made specifically for your rides. Whether you’re chasing KOM’s on the road, gravel sunsets, or ribbons of singletrack, a 1-Level bike is the kind of machine that changes what you expect from a bike. We know that’s a bold statement, but it’s one backed up by a long list of Mosaic riders which includes National Champions and World Cup pros.
People think ‘custom bikes’ are just about fit. That’s a big part of it, but a 1-Level Mosaic is a sum of four perfectly tuned parts: Materials, Fit, Options and Finish. And the result is something that’s not just better—it’s entirely yours.
Material Foundation: The World’s Finest Butted Titanium Tubing and Machined Parts
At the core of every 1-Level frame is a tubeset of rider-specific, internally butted 3AL/2.5V titanium of the highest quality commercially available. Not all titanium tubes are created equal. We have exacting standards for material purity, roundness, butting profile consistency and straightness to ensure that each 1-Level frame starts from a foundation of unsurpassed precision. And for the record, we hold the straight-gauge tubes used in our 2-Level bikes to the same level of scrutiny. Cable bosses, head tubes and bottom bracket shells, brake mounts and dropouts are also the highest quality available. We’re aware of the buzz about 3D printing but we find that the quality and performance of our machined parts is unmatched.
Fit: Custom Geometry That’s All You
Fit is the beginning of the Mosaic process, and for good reason. This goes beyond saddle height and reach. Think: your unique proportions, riding style, flexibility, and handling preferences—translated into a geometry chart and brought to life in titanium.
Even if you’re an “average” size, you’re not average. Not really. A good fit from a Mosaic dealer or fitter accounts for your limb lengths, bar drop, riding history, goals, injuries and imbalances, flexibility or lack thereof, everything. Whether you’re looking for comfort on epic rides, stiffness and responsiveness for crits, or just a little more confidence off-road, the right fit makes it happen. And when it’s built into the frame from the start, it shows.
1-Level frames are available in road, mountain, gravel, adventure and all-road variants, each with geometry suited to that riding style. From that baseline we further tune bottom bracket height, wheelbase, fork offset and trail to suit the nuances of your individual fit along with how and where you aim to ride.
And we go way beyond the numbers. Each 1-Level frame gets a rider-specific butted titanium tubeset with wall thicknesses, butting profiles and diameters dialed for weight, power, and preference, striking a balance between stiffness and compliance while shedding grams. Want a plush ride for multi-hour gravel days? Smaller-diameter stays can help. Are you a big rider looking for extra punch for sprinting? An oversized tubeset is sure to stiffen things up.
Options: The Details Matter
Third bottle on the downtube? Rack and fender Mounts? Pump peg? Chain hanger? Specific 1x or 2x drivetrain? With a 1-Level Mosaic you can dig in on those little extras. Integrated GT and RT models are specified with an ENVE Fork and choice of ENVE or Chris King headset.
Finish: A Bike That Looks Like Your Dreams
Paint is personal. At Mosaic, the finishing process is done in-house, just steps from where your frame is built. That means tighter control, faster turnaround, and more freedom to get exactly what you want. Choose from several timeless raw titanium options, clean two-tones, or wild fades and custom Artist Series designs for an upcharge.
If you’ve got a vision, they’ll help bring it to life. If not, they’ll guide you toward something that turns heads without overthinking it. And while these options are also available with our 2-Level models as upcharges, they come standard with a Made-to-Order 1-Level Mosaic
You can even extend the look to painted forks, stems, and seatposts, tying your entire build together with a color story that’s unmistakably yours.
Time to Build Yours
Riders choose Mosaic for a reason: every frame delivers top-tier performance, a tailored fit, and finish work that looks like nothing else out there. When you add it all up, the 1-Level lineup represents the best of what modern custom framebuilding has to offer.
Ready to build your dream bike? Start with your local Mosaic dealer or contact us directly at info@mosaiccycles.com. Let’s get rolling.










































