Megamo2027
Reason Air AL
Aluminium 2027 Reason Air with 140 mm travel front and rear, Avinox M2S assistance and an integrated 800 Wh battery. The verified 05 and 07 builds use the Air-specific adjustable geometry.
Colours
Manufacturer colour illustration. Equipment, model year and frame size shown may differ from the selected configuration.
Sources checked: 25 October 2026
Reason Air AL 05 (LOW)
Selected size: L
800 Wh
M2S
- Reach (mm)
- 509
- Stack (mm)
- 646
Motor, frame and suspension
- Motor
- Avinox M2S
- Motor power (W)
- 1,300 W
- Motor torque (Nm)
- 130 Nm
- Battery
- 800 Wh
- Removable battery
- Unknown
- Frame material
- Aluminium
- Wheel setup
- 29
- Front travel (mm)
- 140
- Rear travel (mm)
- 140
- Weight (kg)
- Unknown
Figures are manufacturer claims, not independent measurements. Unknown values are never substituted with zero.
Refer to the linked manufacturer source for operating and measurement conditions.
Refer to the linked manufacturer source for operating and measurement conditions.
Build sources: Megamo
Components
- Fork
- Fox 36 Float SL Performance, 140 mm Travel, Grip
- Rear shock
- Fox Float Performance, 210x47,5 mm, Evol LV, Low Speed Rebound, 2 Position
- Brakes
- Shimano XT M8220, Hydraulic Disc 4-Piston, SM-RT86 203 mm
- Drivetrain
- Sram 90 EAGLE T-TYPE, 12-Speed / Sram XS 1270 T-TYPE, 10-52T
- Wheels
- Megamo 29 SL 30 ASY, Aluminium Rim, 15x110/12x148 mm
- Tires
- Maxxis New Dissector 29.4 EXO+ 3C MaxxGrip / Maxxis New Dissector 29.4 DD 3C MaxxTerra
Build sources: Megamo
Geometry by size
Reason Air 140/140 mm, flip-chip LOW. BB height is omitted pending clarification of the inconsistent manufacturer table.
Select a size heading or any value in its column to update the configuration and size-specific details.
Bike geometry illustrated
The redrawn reference shows markers A–O. Focus or point to a measurement in the legend to highlight its marker.
- 509 mm
- 646 mm
- Not documented
- Not documented
- Not documented
- 1,308 mm
- 458 mm
- 36 mm
- Not documented
- 649 mm
- 64.3 °
- Not documented
- Not documented
- 77.8 °
- 455 mm
This redraw illustrates measurement locations, not the selected bike's frame or proportions. The values alongside are documented for the selected size. Unavailable measurements remain undocumented. Fork length is not suspension travel.
Live size comparison
Change the selected size here or above to update the overlay and values. The reference size stays fixed until you change it.
Reference: S (faded)Selected: L (full opacity)
Both layers use the same transparent reference artwork, aligned at the bottom bracket. Each is scaled horizontally by its published reach and vertically by its stack. This illustrates reach and stack differences only: wheelbase, angles, wheels and frame shapes are not reconstructed. Use the documented values and deltas below for all other measurements. This is not a fit prediction.
- Reach (mm)
- 509 mmΔ +58 mm
- Stack (mm)
- 646 mmΔ +36 mm
- Front center (mm)
- Not documentedΔ Not documented
- Wheelbase (mm)
- 1,308 mmΔ +84 mm
- Chainstay (mm)
- 458 mmΔ +8 mm
- BB drop (mm)
- 36 mmΔ 0 mm
- BB height (mm)
- Not documentedΔ Not documented
- Effective top tube (mm)
- 649 mmΔ +67 mm
- Head angle (°)
- 64.3 °Δ 0 °
- Effective seat angle (°)
- 77.8 °Δ 0 °
- Seat tube (mm)
- 455 mmΔ +55 mm
Each Δ column compares that size with the first size shown, not the currently selected size. Changing build can change the reference size. Deltas are numerical only; size labels, setup and measurement conditions must be considered.
| Measurement | S | M | Δ vs S | L | Δ vs S | XL | Δ vs S |
|---|---|---|---|---|---|---|---|
| Reach (mm) | 451 | 479 | +28 mm | 509 | +58 mm | 521 | +70 mm |
| Stack (mm) | 610 | 628 | +18 mm | 646 | +36 mm | 655 | +45 mm |
| Head angle (°) | 64.3 | 64.3 | 64.3 | 64.3 | |||
| Effective seat angle (°) | 77.8 | 77.8 | 77.8 | 77.8 | |||
| Chainstay (mm) | 450 | 454 | +4 mm | 458 | +8 mm | 454 | +4 mm |
| Wheelbase (mm) | 1,224 | 1,265 | +41 mm | 1,308 | +84 mm | 1,320 | +96 mm |
| BB height (mm) | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
| BB drop (mm) | 36 | 36 | 36 | 36 | |||
| Seat tube (mm) | 400 | 420 | +20 mm | 455 | +55 mm | 460 | +60 mm |
| Effective top tube (mm) | 582 | 615 | +33 mm | 649 | +67 mm | 663 | +81 mm |
| Front center (mm) | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
Manufacturer height guide
180–195 cm
Height guidance is a starting point. Rider proportions, setup and preferences also matter; this is not a fit guarantee.
Price observations
No sourced price observation is recorded for this build.
Prices are in euros for the stated build, market and date. A conversion is an estimate, not a local retail price. Historical observations are not current offers. Confirm taxes, fees and final price with the seller.
Availability
Current stock and delivery availability are not verified. Check with the manufacturer.
Intended use and assessment
Trail
No sourced strengths or trade-off assessment is recorded. Specifications alone do not establish how a bike will ride.