Borealis Echo X0X9 Fat Bike

Borealis Echo X0X9 Fat Bike
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Introducing the Borealis Echo w/ the X0X9 build kit, the first carbon fiber Fat Bike frame specifically engineered around the RockShox Bluto 100mm suspension fork. Our Echo X0X9 2x10 build kit is great for budget conscious riders or riders who prefer a wide gear range. The SRAM X9 shifters pair up perfectly to the SRAM X0 rear derailleur for crisp smooth shifting, even in the muddiest terrain.

Borealis Echo Features

- Fully guided internal dropper post routing.
- Fully guided internal cable routing
- Clearance for 4.8” tires on 100mm rims.
- 100mm Bottom Bracket shell
- 42mm upper headset ID, 52mm lower headset ID
- New 197mm rear spacing with 12mm RockShox Maxle thru axle.
- 3 water bottle cage mounts for those Epic Adventures
- Available in Electric Blue or Stealth Black
- 1370 gram frame weight
- Ultra-stiff, fat, and rally-ready carbon frame


Frame Borealis Echo
Fork RockShox Bluto 100mm
Headset Borealis Sealed Bearing
Rims/Wheels Turnagain FR80
Hubs Borealis FH150
Spokes Wheelsmith Black Straight
Tires Surly Knard 27TPI
Crankset RaceFace Ride 22-36t
Chain SRAM 1031
Front Derailleur SRAM X9
Rear Derailleur SRAM X0
Rear Cogs SRAM 1071 11-36t
Shifters SRAM X9
Handlebars RaceFace Evolve 31.8x720mm
Tape/Grips Lizard Skins Peaty Lock On
Stem RaceFace Evolve 70mm
Brake Levers Avid SD7
Brakes Avid BB7
Saddle WTB Speed V Comp
Seat Post RaceFace Evolve
Accessories & Extras Lizard Skin's Protectors

* Subject to change without notice.