August 16, 2026
Mosaic GT-2 i55 in Factory Finish Raw Ti
Mosaic GT-2i 55 in Factory Finish Raw Ti
July 18, 2026
BOTW: Mosaic RT-1 iTR Artist Series
This custom Mosaic RT-1 iTR combines rider-specific geometry, an Artist Series finish, and a thoughtfully curated component spec centered around SRAM RED AXS E1 and Duke wheels.
June 19, 2026
BOTW: Mosaic RT-Zero — Q&A With Chad
What makes a dream bike truly special? We explore the Mosaic RT-Zero, Lightweight wheels, and why the best custom builds start with understanding the rider, not choosing the parts.
February 18, 2026
Racing DNA: The Öhlins Project
From my Ducati 848 track bike, previously living in the shop, to the signed MotoGP photos on the wall, it’s no secret we’re racing fans. Power. Speed. Adrenaline. Craftsmanship. Those themes live as comfortably in a pit garage as they do here at AC, and ultimately reveal why we love riding on two wheels. The crossover between the two disciplines has alway...
January 21, 2026
BOTW: Mosaic GT-1 iAR Double-take
This week’s BOTW may justify a double take. At first glance, this Mosaic GT-1 iAR dressed with ENVE SES 4.5 wheels reads as a pure road machine. A familiar silhouette, aero intent, restrained finish. Look closer, however, and the story begins to shift. This client wanted a bike that lives in the margins—between fast and functional, road and gravel, minima...
December 2, 2025
The Do-Everything Mosaic GT-1 iAR
This week's BOTW is an especially fun one for me. I absolutely love my Mosaic GT-1 iAR fancy pants rain bike and a friend of ours was looking to do something similar with a bit more versatility in mind. Read on to learn about the inspiration and intention behind this eye catching build. First, a little background on my bike and why we came up with thi...
October 21, 2025
BOTW: Mosaic RT-1 — Green with Champagne
A custom Mosaic RT-1 with champagne accents. So good we had the owner bring it back for Bike of the Week.
April 3, 2025
BOTW: Glittering Green Mosaic with a Touch of Gold
Sometimes we find ourselves just sitting and staring at a set of Mosaic titanium welds. We can't help starting, mesmerized by the rows and rows of of titanium beads, their meticulous consistency, awed by the craftsmanship it takes to create something so beautiful and yet so functional. This must be what they mean by … where form meets function. And we po...
February 13, 2025
BOTW: Single Speed Sunburst Mosaic Masterpiece
The ask We love when folks come in with unique requests. Brad hit us with "I want a single-speed titanium bike that I can ride on both the road and gravel." Mosaic GT-1 AR We used Mosaic's titanium GT-1 AR frameset as our base, with sliding drop-outs and clearance for 38mm tires. As badass as Brad is (I mean, single-speed on both road and gravel...? ha...
January 9, 2025
A Lotus-Inspired Mosaic GT-1 45
This customer came to us to build his forever bike, a challenge we often get presented with at Above Category and one we always relish. After reviewing our portfolio of builders, we recommended Mosaic Cycles to our client, initially looking at the brand's 2-series line (stock sizing, raw finish, straight gauge tubing, and 2-3 week lead time - think Bobke'...
October 18, 2024
BOTW: Skyler's Mosaic GT-1 i45 Gravel Bike
We'll keep this BOTW clean, crisp and quick, like Mosaic's flagship gravel model, the GT-1 i45. As the name suggests, it's integrated with space for up to 45mm tires. Control comes via an Enve 2-piece bar/stem featuring the Utah brand's phenomenal Aero bar, supported under a fine Cadex saddle by a matching Enve seat post. Skyler spins his wheels up (a...
March 15, 2024
Watt Magic: Brennan Wertz's Insane Hour of Power Test
When it comes to cycling and the application of power, there's no hiding from the numbers. As painfully binary as it may be, the number that comes back after giving your all for an 'Hour of Power' is a measure of your strength. Recently, our pro gravel racer, Brennan Wertz, took sixty minutes off from his regular training schedule to see how his head, hea...
December 21, 2023
BOTW: A Mosaic GT-1 for Getting About the Bay
This week’s featured build goes to a seasoned road rider who came to us seeking a gravel bike to explore all that the Bay Area has to offer. Above all, he sought comfort, control and great looks. Talking with the rider in more detail only confirmed what we had already mentally recommended: a Mosaic GT-1 45. The GT-1 is a superb example of premium, domest...
October 11, 2023
The Mosaic Batch Built Program
If you're motivated to move on a Mosaic but aren't so keen on the timeline for a custom frame, you need to know about the Colorado brand's Batch Built initiative. For riders who rock a stock frame size, Mosaic's 'no wait' program provides a substantial shortcut to getting the bike of your dreams. The Batch Built program covers Mosaic's road-going RT-2, th...
October 4, 2023
Sali Does the Everest
Salifu "Sali" Mohammed is pacing around the shop like an expectant father in the delivery room. There's no cigar, but there is a brand new Mosaic RT1 ITR, and what had been a smooth delivery has hit a slight snag. "Gumwalls?" exclaims Sali. "I can't ride it like that. I'm an artist!" He's joking, but only just. If you have ever ridden with Sali, you under...
September 18, 2023
Mosaic: It Takes a Village
Tucked towards the back of a row of nondescript industrial garages just north of downtown Boulder sits the Mosaic World Headquarters. Don't let the lack of a fancy facade fool you; hidden behind the understated entrance sits a world of wonder and magic. Upon wandering past the business office, your eyes are inundated with sensory overload. There are rows ...
June 21, 2023
BOTW: Brennan's Sparkly Unbound Orange Mosaic GT1-45
This week we are taking a look at another of our resident racers, Brennan Wertz's Mosaic gravel race bikes, his Unbound Orange GT-1 45 featuring a generous amount of ENVE carbon, ceramic and titanium bits. Frameset A venerable Mosaic GT-1 45 adorned with an eye-catching orange-white fade with a generous amount of metallic flake to catch the mid-day sparkl...
March 28, 2023
Meet the Mosaic RT-1 ITR - Integrated Thick Road
If you've been dreaming about a beautiful custom titanium Mosaic that is not only wicked fast and wicked whippy but will take big ol' fat road tires and still look stealthy, the wait is over. Meet the RT-1 ITR (Integrated Thick Road), the newest frame from the Colorado metal magicians, a model that can trace its inception to the 2020 Enve Builder Round-Up...
March 1, 2023
BOTW: A Mosaic GT-1/AR Stealth
The latest entry to our Bike Of The Week (BOTW) is something new /not new. In mid-2021, ENVE had their Grodeo show, showcasing its brand new fully integrated cockpit. So, of course, we had scores of cyclists who wanted to clean up their front end by using these new bars shown on all sorts of bikes throughout the show. However, it turned out that the bars ...
March 1, 2023
Decoding the Mosaic Cycles Range
One of our closest frame-building partners is Mosaic Cycles out of Boulder, CO. Founder and head welder Aaron Barcheck is our kind of people: direct, no-nonsense and dedicated to his craft. This zero-fluff mentality translates directly into his frames. Mosaic makes some of the most performance-first titanium and steel bikes in the United States. Sure, the...
February 28, 2023
Once-in-a-Lifetime: Carving Fresh Tracks on the Slopes of Mt. Tamalpais
I grew up part way up Mt. Tamalpais, or as most locals refer to it: Mt. Tam. I spent many of my formative years exploring the mountain on foot or by bike. I have lived in the Bay Area for the vast majority of my life and feel very fortunate to be so well acquainted with this special mountain. Now that I am racing and training full time, I enjoy the privil...
February 17, 2023
Long-Term Review: Chad’s Mosaic GT-1 650B Gravel Bike
I've had my Mosaic GT-1/650b bike for a little over two years now. I don't ride off-road as much as on it, so it's taken a bit longer to get a good sample of rides over various routes, terrain, and locations. This bike has been on everything from long stretches of pavement to trails more suited for full-suspension mountain bikes, and here, I'll do my best...
February 16, 2023
BOTW: An Orange Artist Series Mosaic GT-1 45
While this looks like your 'typical' all-custom Mosaic GT-1 45, but look a little closer and you'll notice that in keeping with our shared AC-Mosaic goal of making it happen, it's been modified to accommodate the customer's request to run 48s. Additionally, the customer was intrigued and attracted to the Artist Series Atlas paint scheme: https://www.mosai...