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Borealis Borealis Telluride Gun Metal GX M

Borealis Borealis Telluride Gun Metal GX M
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The goal was simple: Design a fat bike that can attack every trail, all year long. The Borealis Telluride is designed and equipped with single-track riding in mind, allowing riders to push the limits with their fat bikes. Its frame geometry is optimized for 3-4" wide tires in both 29" and 27.5" diameter. A slacker head tube angle and longer wheelbase give riders a more controlled and planted ride. Paired with the highest quality components available, the Telluride is up for every trail in every season.

--1st image shown is the bike in-stock. The other pictures are sample builds off the manufacture's website. --


This one bike quiver can be set up for all season use, both in snow during the winter and on single-track during the warmer months.
Standard features include: Eagle NX 12 Speed drivetrain, RaceFace Next R Carbon Crankset, rigid carbon fork, carbon handlebars, and 160mm rotors.
Optimized for both 27.5 and 29 inch wheels and accommodates up to 4 inch wide tires.
Slacker head tube angle and compatibility for up to 120mm of suspension travel for more controlled descents.
Longer wheelbase for increased stability and angled top tube for comfortable stand over.
83mm bottom bracket reduces the Q-factor down to 189mm.
Lightweight 6000-series aluminum frame is durable and includes rack mounts. Telluride aesthetics are classic with smooth finish welds and externally routed cables.



Borealis offers four frame designs with unique fit and geometry to suit your every Fat Bike need. Begin by taking a rough size approximation on the chart below that is based on height, then select the corresponding bike with your fit needs by using the geometry chart further below. We recommend a similar fit to you mountain bike, so grab a measuring tape and dial it in.


Based on our research, riders at the heights below will usually take the corresponding frame size. If you’re at a transitional height that spans two sizes, look at the geometry chart to get the Stack and Reach you like based on other bikes you are comfortable on.

-Borealis Telluride Frame Medium 17"- Teal
-Borealis Rigid Fork Telluride Carbon
-Downtube Protector Flume
-Chainstay protector Crestone
-Compression Plug complete headset assembly
-35x50 BLK, Stem
-Handlebar Borealis Carbon SL
-Borealis Carbon Seat Post 31.6
-Borealis Saddle
-GA30 Grip Black
-Eagle GX 12spd Cassette 1275 10-50T
-Eagle GX 12spd Rear Derailleur
-Eagle GX1 12spd Trigger Shifter
-MMX Clamp Right
-KMC 12 speed chain silver
-RaceFace Next R Crank Carbon 175BLK
-Bottom Bracket - RaceFace
-Driver XD Alloy Mulefoot 27.5 x 65 Black Wheelset 150/197
-27.5 x 3.8 Minion 120tpi EXO TR folding
-27.5 x 3.8 Minion 120tpi EXO TR folding

Part Numbers

PHTREagleM 210000082439