Borealis focuses on high performance fat bikes and electric bikes. We have prebuilt models or you can custom build a bike that is tailored to your needs.

Since 2013, Borealis has specialized in lightweight carbon fiber fat bikes. COMPATIBILITY Rockshox Bluto Fork tire size limitations: 26x5” or 27.5x4” Mastodon Pro EXT Fork tire size limitations: 26x5” or 27.5x4.5” Borealis Rigid Carbon Fork tire size limitations: 26x5” or 27.5x4.5” Dually 29x45 and 27.5x45 Rims – Max

Borealis focuses on high performance fat bikes and electric bikes. We have prebuilt models or you can custom build a bike that is tailored to your needs.

The Borealis Crestone is a lightweight carbon fatbike with big tire clearance – up to 26″ x 5” or 27.5″ x 4.5” or even 29″ x 3.0″ – and geo ready for 100-120mm of fork travel. We never stripped the frame bare, because a bike with tires this massive is …

At Borealis, we craft world-class carbon fiber fatbikes. It’s our passion and we do it well, testing our creations in the Colorado backcountry, and venturing to Utah and Alaska and all points in...

Since 2013, Borealis has specialized in lightweight carbon fiber fat bikes. The Crestone is their tried and true flagship model. The frame geometry is optimized for riding in snow and sand with clearance for 27.5" rims with 4.5" wide tires.

Jan 13, 2016 · Maintaining its rapid upward growth trajectory, Borealis has added two new bikes and a high-zoot carbon fiber fat bike wheel to its product line-up. The Crestone is the company's self-proclaimed "state-of-the-art" carbon fiber fat bike frame aimed at giving riders the best possible riding experience thanks to fun-inspired geometry tweaks and ...

The bike blew my expectations away every thing about it fit and finish quality of product etc. would recommend if you’re in the market for a new fat tire bike . The Crestone Ultimate is specifically configured for riders looking for a lightweight and capable, single-track-ready fat bike.

Explore the pinnacle of fat biking with the Borealis Crestone, a flagship model in the lightweight carbon fiber range from Borealis. Engineered to conquer diverse terrains, it excels in snow and sand, offering clearance for tires up to 5 inches wide alongside agile frame geometry.

It's a favorite spot for the crew at Borealis bikes and a fitting name for their versatile new fat bike that's built with adventure in mind. Like their other fat bikes, the Telluride GX Eagle/Mastodon Complete Fat Bike floats effortlessly across snow, sand, and loose surfaces.