2022 Borealis Flume
Specs, Comparisons, Reviews, Galleries
Highlights
- Standard features include: SRAM Eagle NX 12-Speed drivetrain, SRAM Level T brakes, rigid carbon fork, carbon handlebars, carbon seat post, durable Sun Ringle Mulefüt rims and your choice of tires.
- Frame geometry provides responsive handling, offering maximum control for varying conditions in snow or sand.
- 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 2-3 bottle cage mounts, rear rack mounts on seat stays and Lizard Skin protectors on both the down tube and drive-side chain stay.
Compatibility
- Rockshox Bluto Fork tire size limitations: 26x5” or 27.5x4”
- Mastodon Pro EXT Fork tire size limitations: 26x5” or 27.5x4.5”
- Borealis Rigid Carbon Fork tire size limitations: 26x5” or 27.5x4.5”
- Dually 29x45 and 27.5x45 Rims – Max tire width: 3”
- All rims 65mm to 85mm wide are compatible with tire widths of 3.8” to 5”
- HED Carbon 100mm Rims – Max tire width of 4.8”

Specifications for the Borealis Flume that are the most important to picking a mountain bike. | Price (USD) | 2325 |
| Rear Travel (mm) | 0 |
| Front Travel (mm) | 0 |
| Head Tube Angle | 70 |
| Seat Tube Angle | 73 |
| Wheel Size (in) | 26 |
| Max Tire Width (in) | 29x3, 27.5x5 26x5 |
| Component Group | NX |
| Frame Material | Alloy |
| Weight (kgs) | 12.96 |
Components for each model of the Borealis Flume comes with. | Fork | Borealis Rigid Carbon |
| Tires | Schwalbe Jumbo Jim 26 x 4.8" |
| Wheelset | Hubs: Borealis;
Rims: MuleFut 26 x 80mm |
| Brakes | SRAM Level T |
| Rotors | F: - R: - |
| Stem | Borealis |
| Headset | Borealis |
| Handlebars | Borealis Carbon, 35mm diameter |
| Shift Levers | SRAM NX |
| Grips | Borealis |
| Saddle | Borealis |
| Seatpost | Borealis Rigid Carbon |
| Bottom Bracket | SRAM DUB 100mm |
| Cassette | SRAM Eagle NX PG 1230 11-50 |
| Chain | KMC X12 |
| Crankset | SRAM Eagle NX Alloy, 30t, 175mm |
| Rear Derailleur | SRAM Eagle NX |
Geometry numbers for each Borealis Flume, the fit, feel, & handling. | Size | MD |
| Crank Length (mm) | 175 |
| Stem Length (mm) | 50 |
| Reach (mm) | 423 |
| Top Tube Length (mm) | 610 |
| Stack (mm) | 610.9 |
| Chainstay Length (mm) | 455 |
| BB Drop (mm) | 60 |
| Head Tube Angle (degrees) | 70 |
| Seat Tube Angle (degrees) | 73 |
| Head Tube Length (mm) | 120 |