borealis Flume Ultimate 2024
2024 Mountain
Estimate price |
2,619$
Weight | 14.97 kg 
Bike details
Overview
Key information split into simple groups.
Bike summary
-
-
Frame Aluminum -
Travel Front 120mm -
Fork Manitou Mastodon Pro
-
Groupset GX -
Suspension Hardtail -
Drivetrain 1 × 12 -
Brakes Hydraulic Disc
Sizing
Recommended size guide.
SM
157cm - 167cm
MD
165cm - 177cm
LG
175cm - 188cm
XL
185cm - 195cm
Parts list
Components
Main components, grouped by system.
Bike components
Frame
Frame
Flume (Aluminum)
Suspension Fork
Manitou Mastodon Pro EXT 120mm or RockShox Bluto RL 100mm (based on supply)
Drivetrain
Rear Derailleur
SRAM Eagle GX 12-Speed
Shift Levers
SRAM Eagle GX 12-Speed
Cassette
SRAM XG-1275 10-52T
Crank
SRAM Eagle GX Alloy 175mm w/ SRAM X-SYNC 30T
Bottom Bracket
SRAM DUB Threaded 100mm
Chain
SRAM EAGLE GX
Wheels
Front Hub
Borealis GEN 4 Black 15x150 Front / 12x197 Rear
Rear Hub
Borealis GEN 4 Black 15x150 Front / 12x197 Rear
Rims
Sun Ringle Mulefut V2 27.5x65
Spokes
Borealis Straight Gauge
Tires
Maxxis Minion FBF/FBR 27.5x3.8
Brakes
Brakes
SRAM G2 RS 4-Piston Hyrdraulic with SRAM Centerline 160mm Rotors
Cockpit
Stem
Borealis 50mm x 35mm
Handlebar
RaceFace NEXT SL 740x10mm OR Borealis Carbon (based on supply)
Grips
Borealis
Headset
FSA
Seat
Saddle
Borealis
Seatpost
KS Lev Integra w/ Southpaw Lever 125mm (SM, MD) or 150mm (LG, XL) travel
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | SM | MD | LG | XL |
|---|---|---|---|---|
| Stack Reach Ratio | 1.467 mm | 1.444 mm | 1.427 mm | 1.417 mm |
| Bottom Bracket Height | 283 mm | 283 mm | 283 mm | 283 mm |
| Stack | 597 mm | 611 mm | 625 mm | 639 mm |
| Reach | 407 mm | 423 mm | 438 mm | 451 mm |
| Top Tube Length | 585 mm | 610 mm | 630 mm | 650 |
| Seat Tube Angle | 73 ° | 73 ° | 73 ° | 73 ° |
| Seat Tube Length | 381 mm | 432 mm | 484 mm | 534 mm |
| Head Tube Angle | 70 ° | 70 ° | 70 ° | 70 ° |
| Head Tube Length | 105 mm | 120 mm | 135 mm | 150 mm |
| Chainstay Length | 455 mm | 455 mm | 455 mm | 455 mm |
| Bottom Bracket Drop | 60 mm | 60 mm | 60 mm | 60 mm |
| Wheels | 26" | 26" | 26" | 26" |
| Rider Min Height | 157 cm | 165 cm | 175 cm | 185 cm |
| Rider Max Height | 167 cm | 177 cm | 188 cm | 195 cm |