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Borealis Keystone Fat Tire E-Bike

Borealis Keystone Fat Tire E-Bike
  • Color: Gunmetal Grey with Cobalt Blue Graphics
  • Color: Gunmetal Grey with Cobalt Blue Graphics
  • Color: Gunmetal Grey with Cobalt Blue Graphics
Color: Gunmetal Grey with Cobalt Blue Graphics
Size: Select size
Please select options Unavailable
This item can only be shipped by ground.


12 Months Free Financing

Frame geometry provides responsive handling, offering maximum control for varying conditions in snow or sand.
Tire clearance up to 26x5” and 27.5x4.5”.
Lightweight, 6000 series aluminum frame comes with internally routed cables, 1-2 bottle cage mounts and lizard skin protection.

Color: Gunmetal Grey with Cobalt Blue Graphics

Weight: 56 lbs. as shown.

Shimano EP8 Drive Unit
Shimano 630Wh Battery
SRAM G2 RS brakes
Mastodon Pro EXT 120mm suspension fork
Carbon handlebars
Dropper seat post
Durable Sun Ringle Mulefüt Rims


Frame Borealis Keystone Aluminum 15", 17", 19", 21"
Fork Manitou Mastodon PRO EXT 120mm, 51mm offset
Headset FSA w/ Star Nut
Battery Shimano BT-E8036 (630Wh)
Rims/Wheels SunRingle Mulefüt SL - 26x80, 27.5x80, or 27.5x65
Hubs Borealis Gen 4 15x150 / 12x197
Spokes Straight Gauge 2.0 Black
Tires Small/Medium: 26x80 / Cake Eater 4.6 Studded Large/X-Large: 27.5x80 / Cake Eater 4.5" Studded
Crankset Chainline 75mm / 1x (38t)
Chainring SRAM Eagle Transmission E-Bike MTB Chainring 104 BCD 36T Steel
Bottom Bracket Shimano EP8
Chain SRAM GX Eagle Transmission Flattop Chain
Derailleur SRAM GX Eagle Transmission Derailleur
Display Shimano SC-EM800
Assist Switch Shimano SW-EM800L
Shifters SRAM AXS Pod Contoller Right Bridge w/ MMX Clamp for GX Eagle Transmission
Handlebars Borealis Carbon
Tape/Grips Ergon GP1
Saddle WTB Volt Medium Steel
Brakes SRAM G2 RS
Rotors SRAM HS2 200mm front / 180mm rear
Accessories & Extras Shimano ECE80042 Battery Charger, AXS Power Pack, Kickstand, UDH Hanger, Key for battery release, Borealis Rear Thru Axle, Remote Battery Charging Adapter
Seatpost ø31.6mm
Weight Size Medium w/ Mulefut 27.5x80 & Terrene Yippee Ki Yay 4.3" Tires: 56 lbs.

* Subject to change without notice.