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Cross :: Stainless

Cyclocross is a sport of traditions: cantilever brakes, tubular tires, the right sequence of movements in a mount or dismount, enormous advertising umbrellas blocking a camera’s view, etc. These traditions are not random. They persist because they work (yes, even the umbrellas).

In the same way, steel is a material of functional traditions. There is tradition in the craft of making a steel bicycle frame, its classic lines, and its fantastically smooth and lively ride. Columbus XCr takes these traditions and rockets them into the modern world.

With its oversized tubes, drawn from a single billet into seamless tubes with wall thicknesses as thin as 0.4mm, our XCr cross frame is stiff and light on par with every modern standard. Meanwhile, XCr’s unique composition keeps it planted to the ground in a way other materials simply can’t match. Corrosion resistant and designed specifically to maintain its strength after welding, it is durable enough to stand up to years of abuse in a way older steels never could.

Our unrivaled experience with stainless steel employs all of these advantages in the first ever XCr cross frame. Add in completely custom tube selection, the first shaped XCr tubing, and custom geometry and you have a truly special bike. That is a Firefly stainless cross bike.

Embrace the innovation. Embrace the tradition.

Complete Custom Bikes :: $5,300 to 10,000+

Custom Frameset Price :: $4,200

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Standard Features

  • Fully custom frame geometry and tube selection
  • Meticulously TIG-welded construction
  • 68mm English-threaded BB
  • 1⅛” HT
  • DT front derailleur routing, TT rear derailleur routing
  • Enve Cross Fork


  • Di2 internal routing // $200
  • Pressfit30 BB // $75
  • Rack mounts // no extra cost
  • Fender mounts // no extra cost
  • S&S couplers // $750
  • Horizontal dropouts with or without hanger


We invite you to work with us directly. If you’re ready to get your hands on a new Firefly, begin here by completing the correct Firefly Fit Form to the right or contacting Kevin Wolfson at 617.825.3473. (Download Adobe Reader XI to easily fill out, save, and email the fit form.)

After we have an initial conversation and receive your custom fit form, we will set up an in-depth interview to talk about you, your perfect bike, and how we will make it a reality.

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We also work with a small handful of premier fit studios we know and trust.

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