The Aostirmotor G20 500W 36V Step-Thru Fat Tire Electric Folding Bike is a compact all-terrain folding e-bike designed for riders who want portability, basic off-road capability, and simple everyday commuting power. It combines a 500W rear hub motor with a 36V lithium battery and fat tires, making it suitable for city riding, light trails, and easy storage in small spaces.
Aostirmotor G20 Step-Thru Folding Design
The Aostirmotor G20 Folding Electric Bike uses a step-thru aluminum folding frame, which makes mounting and dismounting easy. Therefore, it is ideal for riders of different ages and comfort levels who want a convenient daily-use e-bike.
Key Design Features
- Step-thru folding 6061 aluminum alloy frame
- 20” x 4.0 fat tires for stability on mixed terrain
- Front suspension-style comfort setup (varies by version)
- Shimano 7-speed drivetrain for flexible pedaling
- Folding frame for compact storage and transport
Moreover, the foldable design makes it easy to fit into car trunks, apartments, or RV storage spaces.
Aostirmotor G20 500W Motor Performance
The bike is powered by a 500W brushless rear hub motor, which provides steady and reliable assistance. Therefore, it is best suited for commuting, light hills, and casual riding rather than aggressive off-roading.
Performance Highlights
- 500W rear hub motor for smooth acceleration
- Pedal assist + throttle riding modes
- Stable power delivery for urban and mixed terrain use
- Beginner-friendly handling and control
In addition, the motor setup focuses on efficiency and reliability instead of high-speed performance.
Aostirmotor G20 Battery and Range
The G20 Folding E-Bike uses a 36V 13Ah removable lithium battery, designed for balanced daily use.
Battery Features
- 36V 13Ah lithium-ion battery
- Range up to ~25–40 km (depending on mode and terrain)
- Charging time around 4–6 hours
- Removable seat-tube mounted battery for easy charging
Moreover, pedal assist riding can extend the total range significantly compared to throttle-only use.
Aostirmotor G20 Riding Experience
The Aostirmotor G20 Folding Fat Tire Bike delivers a stable ride thanks to its wide tires, which improve grip on pavement, gravel, and light off-road paths. Therefore, it works well as a versatile commuter and recreational bike.
However, because it is a budget folding fat tire model, it is heavier than standard bicycles and feels less refined on rough terrain.
Aostirmotor G20 Safety and Features
The bike includes mechanical disc brakes, which provide dependable stopping power for everyday riding. Therefore, riders maintain better control in traffic and downhill situations.
Moreover, the step-thru frame improves accessibility, making it easier to get on and off in stop-and-go city riding.
Aostirmotor G20 Key Benefits
- Compact folding design for easy storage
- 500W motor for reliable daily commuting
- Step-thru frame for easy mounting
- Fat tires improve stability on all terrain
- Removable 36V battery system
- Shimano 7-speed gearing for flexibility
- Beginner-friendly controls
- Suitable for commuting and light trail use







Carlos Ramirez (verified owner) –
This electric bike makes cycling fun again.
Blake Foster (verified owner) –
I feel safer riding this bike thanks to its stable handling.
Ryan Harris (verified owner) –
The overall quality and performance are excellent.
Anthony Martinez (verified owner) –
This electric bike fits perfectly into my daily routine.
Jonathan White (verified owner) –
The battery lasts longer than I expected, even on higher assist levels.
Benjamin Young –
It rides smoothly even on slightly rough roads.
Kevin Taylor –
I switched to an e-bike for my daily commute, and it’s honestly been a game changer.
Mark Cooper –
The motor kicks in smoothly without any jerky movements.
Mark Cooper –
This e-bike has helped me get back into cycling after years.
Jacob Rogers –
It handles hills like a pro—no more struggling or getting tired.
Christopher Davis –
This e-bike has helped me get back into cycling after years.
Francisco Romero –
This e-bike has helped me get back into cycling after years.
Juan Delgado (verified owner) –
I love how flexible it is for different riding styles.
Jack Evans (verified owner) –
I feel safer riding this bike thanks to its stable handling.
Diego Navarro (verified owner) –
This e-bike makes riding longer distances enjoyable.
Sean Morgan –
It’s very comfortable, even on longer rides.
Evan Ward –
I use it for errands, and it saves me a lot of time and money.
Anthony Martinez –
The battery charges faster than I expected.
Kevin Taylor –
It’s a great alternative to public transportation.
Jared Powell –
It’s fast enough to be fun but still feels safe and controlled.
Joshua Anderson –
This e-bike exceeded my expectations.
Logan Rivera –
This e-bike has helped me get back into cycling after years.
Manuel Torres –
Battery life is impressive—I can go days without needing a recharge.
Joshua Anderson –
The build quality is solid, and everything feels well put together.
Dylan Scott –
I love how effortless long rides feel now.
Anthony Martinez –
It’s very comfortable, even on longer rides.
Francisco Romero –
The frame feels sturdy and durable.
Jonathan White –
Battery life is impressive—I can go days without needing a recharge.