Product Details

Turn your AZUB into an electric trike

AZUB builds folding trikes in the Czech Republic. Its 26 in suspension trikes use interchangeable rear drop-outs: a 157 mm X-12 through-axle set, or a standard 135 mm set that AZUB keeps for hub gears and hub motors. With the 135 mm set, the f7.9 is a direct fit. AZUB owners have fitted Falco wheels since 2018, often to replace a BionX or a mid-drive.

How to order: three choices above.

  1. Your AZUB model. This sets your rear wheel size. Not listed? Pick "Other model / not sure" and we will confirm with you.
  2. Controls. Wired plus/minus ($99), BLE wireless module to use the Falco Flash app ($149), wired console ($249), or the wireless module with plus/minus ($248) or console ($398).
  3. Cassette. Move your own cassette across ($0), or we fit a new single-speed, 7, 8, 9, 10 or 11-speed cassette ($32 to $100).

The price shown is the full price for your choices: $2,295 for the system, plus controls and cassette. Speed limit: we ship set to 20 mph, the US road-legal limit. Need 15 mph (EU), 28 mph where legal, or an adjustable limit (+$99)? Add a note at checkout or call 877-278-6323. Shipping: $187 to the US, $212 to Canada, $420 to Europe, Australia, New Zealand and every other country. This includes the required hazmat fee for shipping the lithium battery.

Which AZUB models fit

Model Rear wheel f7.9 fit
Ti-FLY 20 20 in Call us first
Ti-FLY 26 26 in Call us first
Ti-FLY X 26 in Call us first
TRIcon 20 20 in Call us first
TRIcon 26 26 in Call us first
T-Tris 26 26 in Call us first

AZUB FAT: 4 in tyres on a wide hub. Not a fit for the f7.9.

Model details from azub.eu and dealer spec sheets, checked September 30, 2026. Makers change parts between model years, so tell us your year when you order.

How the f7.9 fits each AZUB

Ti-FLY 20 (20 in rear) · Call us first

Titanium leaf-spring front suspension plus rear suspension, 20 in wheels, 125 kg (275 lb) with a motor. Tell us which drop-outs you have. See it on azub.eu.

Ti-FLY 26 (26 in rear) · Call us first

Full suspension, 26 in rear, interchangeable drop-outs: order the 135 mm set from AZUB for a direct fit. See it on azub.eu.

Ti-FLY X (26 in rear) · Call us first

26 in wheels all round, full suspension. Uses a wide rear hub as standard; the 135 mm drop-out set is needed. See it on azub.eu.

TRIcon 20 (20 in rear) · Call us first

Rear suspension (air shock optional), 20 in wheels, 125 kg with a motor. See it on azub.eu.

TRIcon 26 (26 in rear) · Call us first

20/20/26 with removable drop-outs; the 135 mm set makes the f7.9 a direct fit. See it on azub.eu.

T-Tris 26 (26 in rear) · Call us first

AZUB's rigid, lower-cost 26 in trike. Tell us your drop-outs. See it on azub.eu.

What the conversion involves

  1. Swap the rear wheel. The f7.9 arrives as a complete wheel, built in your size, with the motor, controller and sensors inside the hub. Move your cassette across, drop the wheel in and fit the torque arm.
  2. Mount the battery. Most trike owners mount the 672 Wh battery behind the seat or on a rear rack, low and central.
  3. Add the controls. Thumb throttle and a console or the Falco Flash app. Reverse and regenerative braking are set from the controls.

No cutting, drilling or welding. Most owners finish in an afternoon; any bike shop can do it.

Please read before you convert. AZUB's manual allows a crank or rear-hub motor of up to 350 W nominal and limits the load to 125 kg (275 lb) with a motor. The f7.9 is a 750 W motor, and AZUB says modifications void its frame warranty. Fitting a Falco may affect your AZUB warranty, so every AZUB model is marked "Call us first".

AZUB’s own e-assist, and how the f7.9 differs

AZUB fits Shimano STEPS / EP mid-drives (EP6, EP801, E6100).

We would love to publish an AZUB owner story with photos. If that is you, write to us.

Not sure about your trike? Pick your model above, or "Other model / not sure". Call 877-278-6323 or book a free call before you order and we will check it with you. Full fit guide: will it fit my trike? Thru-axle frames: ask us about the drop-out conversion.

Watch the Falco on a trike

A Falco conversion on an AZUB (1:21, filmed several years ago)
Bosch vs Falco, the battle of two drives, part 1. Keep watching: part 2, part 3, part 4.
Why a mid-drive is the wrong motor for a trike (1:52)
Using reverse on your Falco eDrive (1:25)
Tools you need to fit the Falco wheel (1:52)

Manuals and guides

Hub motor or mid-drive?

Falco f7.9 (hub) Typical mid-drive kit
Where the motor sits Inside the rear wheel At the pedals, drives your chain
Wear on chain and cassette None from the motor Higher
Reverse Yes Usually no
Regenerative braking Yes No
Drag when the motor is off Zero Some
Motor warranty 5 years Often 2 years
Steepest hills in low gears Good Very good

Prefer to pay over time? Choose Shop Pay Installments at checkout (subject to approval).

AZUB is a trademark of AZUB. Falco eMotors is not affiliated with or endorsed by AZUB. Photos on this page are of Falco owners’ trikes; see azub.eu for the maker’s own photos.

Not sure it fits your bike or trike? Call 877-278-6323 or book a free consultation. We will check your frame, wheel size and drop-out before you order.

The Falco f7.9 is a 750 W, 48 V, 672 Wh electric drive that turns the bike, trike or tandem you already own into a smart eBike. The motor, controller, torque sensor and speed sensor are all inside the rear hub, so installation is a wheel swap plus a battery. It assists to 20 mph in the US (28 mph where legal), goes up to 120 miles on a charge at level 1, freewheels with zero resistance when the assist is off, and regenerates on descents. It is the same drive that powers the Three Wheels of Magic. Read what owners say in the customer stories.

What is in the box

  • The electric wheel: a complete rear wheel with rim, spokes, tube and tire, ready to drop into your frame. Sizes 700c, 29 in, 650B, 26 in, 24 in, 20 in and 16 in.
  • The battery: 672 Wh, 48 V, 14 Ah down-tube lithium battery with Panasonic cells, charger and holder.
  • Thumb throttle: compact, leaves room on the handlebar.
  • Torque arm kit: extra strength for your frame drop-outs.

Specifications

Motor 750 W nominal, 5-phase Falco eDrive, zero freewheel resistance, 45 Nm, 5.9 kg / 13 lb
Speed 28 mph (speed pedelec); 20 mph (US) / 15 mph (EU)
Range 120 mi / 192 km at level 1 assist; 84 mi / 130 km at level 3
Battery 672 Wh Li-ion, 48 V, 14 Ah, down-tube type, 3.6 kg / 8 lb
Charge time 4 hours to 75%, 6 hours to 100%
Wheel sizes 700c, 29 in, 650B, 26 in, 24 in, 20 in, 16 in
Drivetrain 1, 7, 8, 9 or 10 speed
Drop-out 135 mm, vertical or horizontal
Brakes Rim and disc compatible; optional regenerative braking
Throttle Thumb or twist
Wireless ANT+ and Bluetooth (BLE); Falco Flash app for Android and iPhone; Mac and Windows tools
Warranty 5 years motor, 2 years battery, 1 year other parts

Controls: pick what suits you

ANT+/BLE wireless module

Needed for wireless mode. It connects the motor to the Falco Flash app on your phone so you can set assist and regeneration levels, change modes, read the sensors and more.

Wireless module

Wired console

An eBike computer on a five-foot cable that plugs straight into the motor. No charging, no pairing: plug in, switch on, ride. It comes with a plus/minus controller for power levels, brake and wheel circumference.

Wired console

Wired plus/minus

A simple controller for raising and lowering the power level, switching between pedal-assist and regeneration, applying the brake, and reverse on trikes.

Wired plus/minus

Combinations. The wired plus/minus and the wireless module work together: set things up in the app, then ride without your phone. The wireless module and the wired console cannot be used at the same time; choose one.

Why it rides differently

  • Patented five-phase motor: zero freewheeling resistance, about 40% more power than a three-phase motor, high-efficiency assist and regeneration.
  • Torque and speed sensing: power arrives in proportion to how hard you pedal, so it feels like your own legs, only stronger. Adjust the level any time.
  • Clean installation: wireless console and plus/minus controller keep cables to a minimum.
  • Five-year motor warranty: a direct drive has no gears to wear, and we have built them since 2011.

Manuals, guides and apps

Questions? Call 877-278-6323, book a free consultation, or read the FAQs.