Since 2013, Borealis has specialized in lightweight carbon fiber fat bikes. The tried and true, Carbon Fiber Crestone is our flagship model. Its frame geometry is optimized for riding in snow and sand with clearance for up to 5” wide tires. Paired with the most technically advanced components in the industry, the Crestone sets the standard for premium quality carbon fiber fat bikes.

HIGHLIGHTS:

• Frame geometry provides responsive and nimble handling for variable conditions in snow or sand.
• Internally routed cables.
• Tire clearance up to 26x5” and 27.5x4.5”.
• Compatibility for 100-120mm of suspension travel for more technical riding.
• Lightweight, durable carbon fiber frame comes with 2-3 bottle cage mounts and lizard skin protectors on both the down tube and drive-side chain stay.
• Available as frame only or as a frameset which includes a fork.

SPECS

Frame includes:

• Chainstay and seatstay protectors
• Seatpost collar
• Rear axle and derailleur hanger

Frameset includes all of the above as well as:

• Complete headset and compression plug/ star nut
• Front axle

All frames are covered by a 5 year warranty and crash replacement program.

RIDER HEIGHT RECOMMENDATIONS
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.

GEOMETRY CHART
Stack and Reach are the fundamental fit elements, they are both measured relative to the bottom bracket. When choosing the Borealis that is right for you, it’s important to find a balance in these measurements to ensure the best performance.

CRESTONE	S	M	L	XL		S	M	L	XL
Effective Top Tube	23.02 in	24.01 in	24.67 in	25.59 in		585 mm	610 mm	626.6 mm	650 mm
Seat Tube Center to Top	15.04 in	17.01 in	19.06 in	21.02 in		381 mm	432 mm	484 mm	534 mm
Head Tube	4.13 in	4.72 in	5.31 in	5.91 in		105 mm	120 mm	135 mm	150 mm
Seat Tube Angle	73 deg	73 deg	73 deg	73 deg		73 deg	73 deg	73 deg	73 deg
Head Tube Angle	70 deg	70 deg	70 deg	70 deg		70 deg	70 deg	70 deg	70 deg
Standover Height	Due to various rim and tire options stand over is not identified.
Chainstay	18.07 in	18.07 in	18.07 in	18.07 in		459 mm	459 mm	459 mm	459 mm
BB Drop	2.36 in	2.36 in	2.36 in	2.36 in		60 mm	60 mm	60 mm	60 mm
Reach	16.04 in	16.65 in	17.22 in	17.76 in		407.3 mm	423 mm	437.5 mm	451.2 mm
Stack	23.50 in	24.05 in	24.61 in	25.16 in		597 mm	610.9 mm	625 mm	639.1 mm
Frame Weight	3.02lb	3.06lb	3.06lb	3.17lb		1.37kg	1.39kg	1.39kg	1.44kg