AOSTIRMOTOR A20 500W Folding Fat Tire E-Bike Canada

The AOSTIRMOTOR A20 is a folding fat tire electric bike with a 500W brushless motor, removable 36V 13Ah lithium battery, 20 x 4.0 inch tires, mechanical disc brakes, and a 6061 aluminum frame.

Its folding design helps with apartment storage, car-trunk transport, boat trips, elevators, and office storage. The frame folds to about 90 x 70 cm, and the folding pedals reduce the stored width.

The 20 x 4.0 inch fat tires give the A20 more stability than many compact folding e-bikes with narrow tires. They help on gravel paths, wet pavement, packed dirt, sand, and light seasonal surfaces.

The advertised 40 km/h maximum speed can exceed common Canadian public-road e-bike limits. Check provincial and municipal rules before riding on public roads or shared paths.

FOLDING 6061 ALUMINUM FRAME: Folds to about 90 x 70 cm for easier storage and transport.

500W MOTOR: Provides practical power for commuting, errands, and mixed-surface casual riding.

36V 13AH REMOVABLE BATTERY: Rated for 25 to 35 km in pure power mode and removable for indoor charging.

20 X 4.0 INCH FAT TIRES: Wide tires improve stability and grip on rough pavement, gravel, sand, packed dirt, and light snow.

MECHANICAL DISC BRAKES: Front and rear disc brakes provide predictable stopping control.

7-SPEED DRIVETRAIN: Shimano or Sunrace gearing helps with starts, hills, and steady cruising.

FOLDING PEDALS: Pedals fold flat to reduce storage width.

FRONT LIGHT AND FENDERS: Built-in utility for visibility and wet-road spray control.

REMOVABLE BATTERY STORAGE: Battery can be charged indoors during cold Canadian weather.

Brand: AOSTIRMOTOR

Model: A20

Motor: 500W brushless motor

Battery: 36V 13Ah removable lithium battery

Controller: 36V 22A

Charger: 110V to 220V, 4 to 6 hour charge time

Display: 866-LCD

Throttle: Rotary throttle

Assist: PAS pedal assist

Drivetrain: 7-speed Shimano or Sunrace

Frame: Folding 6061 aluminum alloy

Fork: Rigid aluminum alloy fork

Suspension: No front or rear suspension

Brakes: Front and rear mechanical disc brakes

Rotors: 180 mm front and 160 mm rear

Tires: 20 x 4.0 inch fat tires

Rims: Aluminum alloy spoked wheels

Pedals: Folding pedals

Riding modes: Pedal mode, boost mode, power mode

Range: 25 to 35 km in pure power mode

Advertised maximum speed: Up to 40 km/h, depending on settings and conditions

Net weight: About 29 kg

Gross weight: About 34 kg

Maximum load: 260 lb / 118 kg

Product size: About 176 x 122 cm

Folded size: About 90 x 70 cm

Saddle height: About 80 to 92 cm

Included equipment: Front light, fenders, battery, charger, tool kit, manual, pedal

Colours: Black or orange

The A20 uses a 500W brushless motor with a 36V 22A controller. It is tuned for portable riding rather than high-output trail use.

Power is managed through pedal assist, rotary throttle, and a 7-speed drivetrain. The gearing helps riders start smoothly, climb moderate hills, and use less battery on longer rides.

The advertised maximum speed is up to 40 km/h. That can exceed common Canadian public-road e-bike limits, so riders should check local rules and choose appropriate settings and routes.

The A20 uses a removable 36V 13Ah lithium battery. Removing the battery makes charging easier in apartments, offices, storage rooms, and vehicles.

Rated range is 25 to 35 km in pure power mode. Pedal assist can extend useful riding distance, while cold weather, hills, high speeds, soft surfaces, low tire pressure, and heavier loads can reduce it.

Charge time is listed at 4 to 6 hours. Charging and storing the battery indoors at moderate temperatures helps protect battery performance during Canadian winter.

MECHANICAL DISC BRAKES: Front and rear disc brakes provide predictable stopping control.

FAT TIRES: 20 x 4.0 inch tires add a wide contact patch for grip and stability.

FOLDING FRAME AND PEDALS: Folding hardware supports compact storage when properly locked before riding.

FRONT LIGHT: Built-in front lighting improves visibility in low light.

FENDERS: Fenders help control spray on wet Canadian roads and paths.

ROAD-RULE AWARENESS: The advertised maximum speed can exceed common Canadian public-road e-bike limits. Check local rules before riding on public roads or shared paths.

PROS: Folding frame, folding pedals, removable battery, 20 x 4.0 inch fat tires, 500W motor, 7-speed drivetrain, front light, fenders, and compact 90 x 70 cm folded size.

CONS: No suspension, mechanical brakes require more hand effort than hydraulic brakes, 25 to 35 km pure-power range is modest, and the advertised 40 km/h speed can exceed common Canadian public-road e-bike limits.

VERDICT: Choose the A20 if storage and transport matter most. It is a practical folding fat tire e-bike for apartments, car trunks, boats, and mixed-surface casual riding.

Buy the AOSTIRMOTOR A20 if you want a folding e-bike that still feels stable on wider tires.

It fits riders who need apartment storage, trunk transport, seasonal charging indoors, and enough tire volume for gravel paths, wet pavement, packed dirt, and light snow.

Choose a different model if you want suspension, long range, hydraulic brakes, or simpler public-road compliance. Check provincial and municipal rules before riding on public roads or shared paths.