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The Firefly Titanium Mountain Bike

Introducing the newest category in our growing lineup of high performance custom bicycles: the Firefly Titanium Mountain Bike...

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Build Profile :: Di2 Titanium Dirt Road :: Medeiros

It was the first week in August and the Deerfield Dirt-Road Randonnee , or D2R2 as it’s know in these parts, was just a couple of weeks away. What better excuse to build myself my first Firefly. I wanted something nimble, quick and road worthy yet able to handle some larger tires for dirt road stability. Let’s take a look at what we came up with…

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Firefly :: Recent Works :: Complete Builds

There is nothing more satisfying than seeing it all come together. We have been building quite a few complete custom bicycles here at Firefly and we thought it was about time to take a closer look. We have been posting most of our builds in the Firefly Gallery, but sometimes it’s nice to give a little more explanation…

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Stealth UltraCommuter:: Titanium :: Bertone Edition

The Titanium Stealth UltraCommuter, Bertone Edition, was an exciting challenge for us. We dove headfirst into making all aspects of the bike meet the specific needs of the customer and its intended use…

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Recent Titanium :: Tube Selections

“Remember that feeling when you were a kid and you got a new pair of sneakers and you could run faster than ever… it’s like that.” -M.M. (Firefly customer)

This is our goal. To give our customers that connection on their first ride. We see a bicycle built at this level as an intimately personal machine. A machine made by hand to suit you, your body, your strengths, your weaknesses and your personal aspirations… essentially a bio-mechanical extension of your being.

One of the ways we make the frames personal to the individual (beyond the fit, geometry and finish) is by selecting a tubeset that is the most suitable to the individual. The differences are the most obvious on our titanium frames, so let’s take a look at some of our recent builds with a special focus on the differences in some of the diameters and shapes of the titanium tubes we use…

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Firefly :: XCr :: Integrated Di2

This stainless steel XCr bike has been built with internally integrated wiring for Shimano’s top of the line gruppo called Dura-Ace Di2. It uses a battery to power the front and rear derailleurs, making shifting slightly more precise than with traditional cables and housing. To make this bike even more awesome we hid the battery system within the frame, normally they are mounted externally in an ugly (not so little) black plastic box. The battery we put in this frame is lighter and lasts longer than the standard battery that comes with the gruppo.

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Firefly :: Welding Titanium

A wise man once told me (about welding), if it looks good, it is good. He was mostly right. If you assume the things you can’t see, such as: the metal is cleaned and prepped properly, the correct filler rod is used, there is adequate penetration and the weld is properly purged; then yes, if it looks good, it is good…

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Firefly :: LIVESTRONG :: XCr

Livestrong Massachusetts

Our latest stainless steel full-build made for the head of the Massachusetts LIVESTRONG chapter, Matt McGinty.

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Firefly :: Stainless Dropouts

In our opinion a bicycle’s dropouts are like a framebuilder’s signature and we wanted ours to be, well… ours…

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Firefly :: Ride on Washington D.C.

Tim Johnson’s Ride On Washington was the absurd brainchild of Tim and world famous announcer and bike advocate, Richard Fries. The goal was to ride from Boston to Washington, DC (~480 miles) in five days, arriving on the first day of the National Bike Summit, raising money and awareness for Bikes Belong along the way…

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Firefly :: PF30 Heatsink

TIG (Tungsten Inert Gas) welding is our chosen method of joining our tubes together to form a frame. The torch uses an electrical arc in a super controlled manner to melt a small liquid puddle of metal at the joint. We then add a filler material (filler rod) to the puddle, making a weld bead. This is the best way to join the materials we are using to make our frames, and also one of the hardest to master. Because the metal is heated up to a liquid and then cools down there is a small amount of distortion (shrinkage) that occurs. It is the goal of a welder to minimize and control this distortion as much as possible. To do this we employ the use of heatsinks…

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Purchase

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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