We build the RM3 for the obsessed. For riders who know that those marginal gains everyone talks about aren't marginal at all—they're the difference between dreaming about a ride and living inside it. For the ones who understand that the perfect road bike isn't about having every feature, but having every element in perfect harmony with you.
This is the bike for dawn rides that clear your head. For centuries that test your will. For the climbs you've studied and the descents that make you feel weightless. For every moment when the road calls and you answer with everything you have.
The RM3 is nostalgia and future, romance and precision, emotion and engineering—all of it molded in carbon tailored to you. Because when the bike is right, truly right, the road has no limits. Only possibilities.
It’s an exceptional bicycle... a well-crafted piece of machinery that I would go so far to describe as a form of art.
Rachel Jary Rouleur
Possibly the zenith of custom carbon frame building, beautifully balanced with sublime ride quality and exceptional handling.
James Spender Cyclist Magazine
...with a ride quality that sets a benchmark mainstream brands would do well to target. It’s that good.
James Huang Cycling Tips
... The RM3 may very well be the finest-riding carbon bike l’ve ever had the pleasure to toss a leg over. This thing most definitely tugs at my heartstrings.
Custom at Argonaut begins where others stop. Yes, geometry matters—every angle, every millimeter calibrated to your body and riding style. But the RM3's real magic lives deeper, in the carbon itself.
Our engineers don't simply adjust tube diameters. We architect the carbon layup specifically for you, tuning fiber orientation, modulus, and ply schedule to match how you generate power and where you need compliance. A sprinter who explodes out of corners needs different structural characteristics than a climber who grinds steady watts into steep gradients. The RM3's frame responds to your specific biomechanical signature—stiff where you push hardest, alive where you need feel, transparent where efficiency matters most.
This is precision manufacturing as an art form. Every frame is a unique structural solution, calculated and crafted in our Oregon facility with obsessive attention to how forces will flow through it under your specific hands, your specific watts, your specific ambitions.
Client Testimonials.
The RM3 is more than a bike — it’s a statement of style, refinement, and performance. From the first ride to hours in the saddle, it delivers effortless comfort, breathtaking responsiveness, and a presence that turns every road into an experience. Below, real riders share how it feels to live with a bike crafted without compromise, where every detail and every ride reflects the artistry and innovation of Argonaut.
Faster, Longer
“I can’t stop riding my Argonaut. It pushes me to go longer and faster, yet stays remarkably comfortable hour after hour. I expected stiff and unforgiving from carbon, but this bike is lighter, faster, and just as comfortable after four hours as when I first climb on. It’s pure revelation.”
Born to Race
“The RM3 has a life of its own. When you put your foot down, it springs forward, accelerates effortlessly, and just wants to go. Every corner, climb, and descent feels perfectly neutral, letting the bike amplify your own power. It’s fast, precise, and exhilarating — a true weapon on the road.”
Unparalleled Precision
“The geometry felt like home right away. What blew me away most is how the bike manages to be both plush and precise. On climbs the power gathers right beneath you, and in high-speed corners the handling is unmatched. No other bike combines this level of compliance and control.”
Extension of You
“This bike immediately felt like an extension of my body. Its neutral handling, responsive geometry, and perfectly tuned balance make every ride feel effortless. It adapts to you subtly, improving your pedaling and control, without compromise. Riding it is a revelation in precision and comfort.”
Exquisite Craftsmanship
“The RM3 is a joy to ride and a work of art. It encourages exploration, makes every ride fun, and feels alive thanks to the dedication and creativity of the Argonaut team. The Candy Emerald paint is exquisite, subtle, and mesmerizing — a bike that blends performance, elegance, and a touch of stealth luxury.”
The Zenith of Modern Road Bike Design.
Make It Yours.
The process begins with a simple step: place your deposit.
From there, our team takes care of everything; guiding, advising, and building until your dream bike is in your hands.
