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Argonaut Cycles custom carbon bikes, handmade in Bend, Oregon

Forever Riding, without limits

A custom, perfected ride for gravel. 

The GR3 begins with a perfected platform that's defined by refined geometry, exceptional ride quality, and uncompromising engineering. From there, each bike is tailored to the rider, transforming a proven foundation into a distinct riding experience.

Detailed shot of carbon fibers

"From the moment you swing a leg over the saddle, there's no denying that [the GR3] is a race bike. It’s feathery light, snaps like a whip and begs to go fast."
 
Anne-Marije Rook, Cycling Weekly

FOREVER RIDING ON A FOREVER MACHINE

Gravel asks the frame to do things that are, in some ways, in direct tension with each other. Power the climb. Hold the descent. Stay playful in the corners when the surface changes beneath you. The GR3 is the answer to all three. A forever machine tuned for the demands of varied terrain, and the rider who chooses to find it.

MAKING ONLY A FEW, SO YOU CAN HAVE MORE

We design and manufacture no more than 200 custom carbon bicycles from our studio in Bend. Maybe one of those custom builds will be yours. 

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Every road ends. Desire for the ride does not.

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"quick shakedown ride had me grinning from ear to ear and giggling out loud.  i can already tell this bike likes to party hard!  can't wait for the dirty times to come..."

Jason B.

"[My GR3] is a super bike. Love the way she handles on the trail. Your craftsmanship, precision engineering and eye for beauty and detail make my rides/life better every day."

Jens M.

"What could I possibly say... incredibly good! In comparison with my other gravel bike it's lighter on the front wheel, more responsive, yet never nervous, control- and predictable."

Michael D.

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