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Fat Bikes

Borealis Crestone Eagle 12 speed
$2,812.00 - $6,705.00

Custom Design Your Own Fat Bike

Since 2013, Borealis has specialized in lightweight carbon fiber fat bikes. The tried and true Crestone is our flagship model, weighing only 25 pounds with standard options. 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.

  1. Visit Borealis Fat Bikes
  2. Configure your bike
  3. Let Northtowne Cycling & Fitness help you build yours today.

Highlights:

  • Traditional fat bike frame geometry is both responsive and nimble for variable conditions in snow or sand.
  • Standard features include: Eagle NX 12-Speed drivetrain, rigid carbon fork, carbon handlebars, carbon seat post, lightweight HED Alloy wheelset and 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 3 bottle cage mounts and lizard skin protectors on both the down tube and drive-side chain stay.
  • All complete bikes come with two tubes.
Borealis Flume Eagle 12 speed
$1,817.00 - $5,710.00

Custom Design Your Own Fat Bike

With premium frame quality and only the best components, the Borealis Flume offers the best value on the market. This expedition-ready fatty mirrors the Crestone geometry, but does so in lightweight, 6000-series aluminum. Up mountains, down glaciers, and across deserts - the Flume is ready for action. There are all kinds of alloy fat bikes on the market, but none with the Flume’s purebred heritage and durability.

  1. Visit Borealis Fat Bikes
  2. Configure your bike
  3. Let Northtowne Cycling & Fitness help you build yours today.

Highlights

  • Traditional fat bike geometry is both responsive and nimble for variable conditions in snow or sand.
  • Standard features include: Eagle NX 12-Speed drivetrain, rigid carbon fork, carbon handlebars, carbon seat post and durable Sun-Ringle Mulefut rims.
  • Tire clearance up to 26x5” and 27.5x4.5”.
  • Compatibility for 100-120mm of suspension travel for increased comfort and control.
  • Lightweight, 6000-series aluminum frame comes with 3 bottle cage mounts, rear rack mounts on seat stays and Lizard Skin protectors on both the down tube and drive-side chain stay.
  • All complete bikes come with two tubes.
Borealis Telluride Eagle 12 speed
$1,841.00 - $5,454.00

Custom Design Your Own Fat Bike

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.

  1. Visit Borealis Fat Bikes
  2. Configure your bike
  3. Let Northtowne Cycling & Fitness help you build yours today.

Highlights:

  • 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, dropper post, 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.
  • All complete bikes come with two tubes.
IZIP E3 Sumo
$2,850.00
If riding the big wheels turns your crank, then don't trim the fat; add some meat instead with the pedal assist boost of this off-road electric bike. The E3 Sumo electric fat bike is always up for full-sized fun, whether plowing through the snow or cruising your favorite sandy beach. The Bosch Active Line Plus mid-motor packs best-in-class power to keep you rolling wherever your adventure takes you, and the oversized 4-inch tires bowl over soft surfaces and technical terrain like a steamroller. The fully formed aluminum alloy frame and fork have plenty of cargo mounts to carry heavy loads so you can pack everything you need for your next outing. Go big or go home! - Size Medium = 5'6" – 5'9" - Size Large = 5'9" – 6'
Giant Yukon 1
$2,099.99
Why follow tracks when you can make your own? Experience the “foot out, flat out” fun of fat bike riding in any season. Whether you’re tackling fresh snow pack or drifty sand dunes for days, the new Yukon will keep you rallying your favorite terrain in a whole new way. Low Center of Gravity Playful Trail Bike Sloping "low slung" front triangle design provides a low center of gravity for technical maneuvering with ease or countersink control in deep conditions. Maximum Heel Clearance with Low Q-Factor With a heavily swaged rear triangle including dropouts, seatstays and chainstays, this versatile design allows even warmest of riding boots to be worn, while the narrow Q-Factor crank specification provides a more natural feeling cycling experience. Custom Wheelbase Adjustment and Tire Size Flexibility The horizontal adjustable drop out system allows for +/- 15mm rear center length adjustment and tire sizing up to 27.5 X 4.5” for maximum floatation and a fun, playful ride
Giant Yukon 2
$1,629.99
Why follow tracks when you can make your own? Experience the “foot out, flat out” fun of fat bike riding in any season. Whether you’re tackling fresh snow pack or drifty sand dunes for days, the new Yukon will keep you rallying your favorite terrain in a whole new way. Low Center of Gravity Playful Trail Bike Sloping "low slung" front triangle design provides a low center of gravity for technical maneuvering with ease or countersink control in deep conditions. Maximum Heel Clearance with Low Q-Factor With a heavily swaged rear triangle including dropouts, seatstays and chainstays, this versatile design allows even warmest of riding boots to be worn, while the narrow Q-Factor crank specification provides a more natural feeling cycling experience. Custom Wheelbase Adjustment and Tire Size Flexibility The horizontal adjustable drop out system allows for +/- 15mm rear center length adjustment and tire sizing up to 27.5 X 4.5” for maximum floatation and a fun, playful ride.
KHS 4 Season 1000
$1,599.99
Fat bikes feature ultra-wide tires that allow riders to take on snow, sand, rocks, trails, and just about any other obstacle. There is no season they can't ride in. They are easy to pedal, lighter than you'd expect, and just plain fun to take out and ride. - Fork upgrades available: Manitou Mastodon Pro 100mm or Carbon Fork Option
KHS 4 Season 500
$1,199.99
Fat bikes feature ultra-wide tires that allow riders to take on snow, sand, rocks, trails, and just about any other obstacle. There is no season they can't ride in. They are easy to pedal, lighter than you'd expect, and just plain fun to take out and ride. - Fork upgrades available: Manitou Mastodon Pro 100mm or Carbon Fork Option
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