0
Your Profile
Your Basket 0
Your Offers 0
Continue Shopping
Checkout
To improve your shopping experience today and in the future, this site uses cookies.
Read our full Privacy Policy & Cookie information here
I Accept Cookies
The Megamo Reason Air AL 04 is engineered for speed and agility, combining a lightweight alloy chassis with 140mm travel and DJI Avinox power. Smooth, fast, and efficient, it’s the perfect e-MTB for riders who thrive on pace and precision
The Megamo Reason Air AL 04 is engineered for speed and agility, combining a lightweight alloy chassis with 140mm travel and DJI Avinox power. Smooth, fast, and efficient, it’s the perfect e-MTB for riders who thrive on pace and precision
Megamo

Megamo Reason Air AL 04 Alloy Avinox E.Mountain Bike - Raw

£7,099.00
Size Guide
Megamo Reason Air AL 04 Alloy Avinox E.Mountain Bike - Black Megamo Reason Air AL 04 Alloy Avinox E.Mountain Bike - Green
Pre-Order

With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined

Megamo Reason Air AL 04 Alloy Avinox E.Mountain Bike - Raw

Season:2026

Brand:Megamo

Code:MG40004RAW

The Reason Air AL 04 takes a fast and lightweight component set and pairs it with Megamo's trusty alloy chassis, running a shortened 140mm travel configuration, this bike is ready to fly along the trails with speed and agility like a true thoroughbred.

Designed to offer the perfect balance between reduced weight and high-level performance. Choose between the strength of aluminum or the reactive lightness of carbon. Its adjustable geometry and optimized kinematics ensure agility, control, and efficiency across all types of terrain. Thanks to DJI's Avinox system, you’ll enjoy powerful and smooth assistance, ideal for both demanding climbs and technical descents. A light, precise, and rider-adaptable e-bike.

  • DJI Avinox M1 Motor -120Nm 1000W (Boost mode) / 105Nm 1000W
  • Integrated 800 Wh LI-ION battery
  • Hi-Res Oled touch screen
  • GPS and Sim enabled security tracking
  • Reason Alloy frame, Boost, 140 mm wheel travel
  • Fox 36 SL Factory Kashima fork with 140 mm travel
  • Fox Float Factory Kashima shock
  • Shimano XT 12-speed drivetrain
  • Shimano XT 4-piston hydraulic disc brakes
  • DT Swiss M 1900 SP Alloy Wheel Set

The REASON is redefining the e-bike category with a high-performance frame that´s both lightweight and engineered with unbeatable kinematics. It absorbs vibrations without sacrificing responsiveness and delivers agility, control and precision at all times. Its sleek, integrated design looks just like a muscular bike - no one would guess it's electric, not even up close.

With a Flip Chip system that allows you to adjust the frame’s geometry quick and easy. Modify the head tube and rear triangle angles to suit your riding style or terrain type. One frame, four possible configurations. Maximum versatility for riders who want it all.

Responsiveness

Immediate and precise response to every movement.

Design Integration

Clean, modern design with advanced integration and standout aesthetics.

Lightness

The Reason is lighter without compromising performance, improving agility and efficiency on demanding terrain.

Technical Information

Frame

Reason AL Frame, Alloy shock extension, Full Integratted Battery, 12 x 148 Boost, Megamo ASP, Wheel travel: 140 mm

Motor

Avinox M1 Drive Unit: 1000 Watt peak Power, 120Nm Peak Torque

UI/Remote

Avinox Screen: 2-inch OLED Control Display, Avinox Wireless Controllers: Right and left sides

Connectivity

Bluetooth Smart phone App, 4G SIM enabled functions (Data Sim required)

Battery

Avinox Integrated Battery: 800Wh

Charger

Avinox Fast Charger: 12A/508W (0-80% in 1.5Hrs)

Fork

2026 Fox 36 SL Factory Kashima, Float, 29in, 140mm, Grip X, Rake: 44mm

Rear Shock

2026 Fox Float, Factory Series, Kashima 2pos-adj, Evol LV, 210x47,5mm

Headset

Acros AZX-589 ZS56 blocklock 150º

Stem

Megamo 3D Forged Alloy 31,8, ±7º Rise, 60mm

Grips

Race Face Half Nelson Lock-On Grips

Handlebars

Race Face ERA Carbon 35x800mm, 20mm Rise

Saddle

Fizik Terra Aidon X5

Seatpost

Fox Transfer SL Kashima Dropper seat post, remote adjustment, 31,6mm, Sml - 100mm/ Med -125mm/ Lrg - 150mm

Brakes

Shimano XT BR-M8220, hydraulic disc 4-Piston, Shimano RT-EM810 Rotors 203/203mm

Rear DerailleurShimano XT M8100, Shadow Plus 12-Speed
Shift LeversShimano XT M8100, 12-Speed
CassetteShimano XT M8100, 10-51T
ChainShimano M8100 12 Speed
CranksetForged AL6061/T6 165mm beat blasted anodized black
ChainringsE-MTB Chainring 104BCD 34T (Min 32T/ Max 36T compatible)
WheelsDT Swiss M 1900 SP, 30mm Tubeless ready Aluminium rim
Front TireMaxxis Rekon Race 29x2,35 - Tubeless Ready, EXO, Foldable, 120 TPI - we can discuss tyre upgrades to your choice.
Rear TireMaxxis Rekon Race 29x2,35 - Tubeless Ready, EXO, Foldable, 120 TPI - we can discuss tyre upgrades to your choice.
Inner TubesStandard, Presta Valve - We can provide tubeless set-up and tyres liners in addition.
Sizing Information
SmallMediumLarge
Flip Chip PositionLow/ HighLow/ HighLow/ High
Reach453/451mm481/479mm511/509mm
Stack Height608/610mm626/628mm644/646mm
Wheelbase1223/1234mm1264/1265mm1307/1308mm
Chainstay Length449/450mm453/454mm457/458mm
Bottom Bracket Drop33/36mm33/36mm33/36mm
Bottom Bracket Height345/348mm345/348mm345/348mm
Effective Top Tube Length581/582mm614/615mm648/659mm
Head Tube Angle64.5/64.3°64.5/64.3°64.5/64.3°
Head Tube Length100mm120mm140mm
Effective Seat Tube Angle78/77.8°78/77.8°78/77.8°
Seat Tube Height400mm420mm455mm
Professional Opinion
Product Reviews
Write a review
0 As rated by 0 customers

Write a review for Megamo Reason Air AL 04 Alloy Avinox E.Mountain Bike - Raw

Your name
Your email address
How would you rate it?
Would you recommend this product?
Let others know your opinion
Submit Review Close

Also in the range

Home Mountain Biking Bikes Megamo Electric Bikes