Every bicycle that Firefly makes is custom.

As you browse our bikes, one of the first things you’ll notice is that we don’t have catchy model names. The reason is simple: every bike we make is custom. Maybe you want a super stiff race bike, maybe you want a comfortable bike for getting lost on dirt roads, maybe you want a commuter with all the bells and whistles, or an all-day mountain bike, or something totally different.

No series of models can capture the range of your needs and our abilities. If your bike falls between a road and a cross bike, or a cross and a mountain bike, no problem. Start with what seems like the closest match and we’ll work out the details from there. Let the dream begin…

– Excellent Fit Test.
– Excellent Manufacturing Process.
– Excellent frame details.
– Excellent handling.

… Best bike I have ridden!

See the build
  • photo from Tumblr

If you ever ride on Mass Ave between Columbia and Melnea Cass, or just want to be able to ride to/from Dorchester more safely, take a few min to fill out this survey! And thank you for your advocacy, BCU!


You can help ensure changes come soon, and that they're designed to maximize cyclist safety! Share your feedback on Mass Ave. to the city via this form:

Save the date! @Dani_MSmith, @KPLegan, and @emilyschaldach will be hosting an easy ride/casual CX skills lesson on Monday, 11/4. Starts from Firefly at 3pm, gather at Firefly to hang after. Perfect for your post @ReallyRadCX hangover. More info soon!

This past weekend @Dani_MSmith and @emilyschaldach went 1-2 in their local cross race and then immediately took their bikes to the bike park. The second part is most of why we love sponsoring them, honestly. #AirIsEverything

Speaking of commuting, this Spork’ed @fireflybicycles is a work of functional art. Or maybe this bike isn’t for commuting at all; that dropper post suggests nefarious intentions...

"With elbows and knees out, chest down, and eyes up, we made it smoothly down with lots of squealing and smiling." 🥰 🥰 🥰. This blog is everything. We're proud to make your bikes, @emilyschaldach! https://t.co/xRuiRKJoxY

Pink to teal vascular system fade is not at all accurate but is very cool looking. Win some lose some. https://t.co/SphSgoM0xZ #💉

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