Quick Summary
The VARUN 20 x 4.0 fat tyre electric bike is a folding e-bike with a 48V 13Ah detachable battery, NFC lock, app-linked LCD and a stated range of up to 120 km. It also has a 250 W motor, 55 Nm torque, 7-speed transmission, 4 riding modes and 5 speed levels.
The bike combines full suspension, mag wheels, dual disc brakes, mudguards, a rustproof chain and StVZO-certified lighting. If those features matter to you, check the exact riding setup, folded storage needs and whether the bike’s configuration matches your intended use.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Brand | VARUN, which identifies the bike range. |
| Product type | 20 x 4.0 fat tyre electric bike. |
| Battery | 48V 13Ah detachable battery, so battery format matters when comparing variants. |
| Motor | 250 W motor with 55 Nm torque. |
| Range | Stated range of up to 120 km. |
| Tyres | 20 x 4.0 inch fat tyres. |
| Riding modes | 4 riding modes and 5 speed levels. |
| Transmission | 7-speed transmission gear system. |
| Brakes | Dual disc brakes. |
| Frame | Folding aluminium frame. |
| Lighting | StVZO-certified LED headlight and integrated taillight with brake signal. |
| Other features | NFC lock, app-linked LCD, full suspension, mag wheels, mudguards and rustproof chain. |
What to Compare Before Buying
- Battery and range: The bike uses a 48V 13Ah detachable battery and is stated to reach up to 120 km. Compare that with the distance you expect to ride.
- Wheel and tyre size: The 20 x 4.0 inch fat tyre format affects ride feel and storage space, so check it against your handling and space needs.
- Folding format: The folding aluminium frame is important if you plan to store or transport the bike in a limited space.
- Ride control: 4 riding modes, 5 speed levels and 7 gears give multiple setup choices, so confirm that this matches how you want to ride.
- Security and display: NFC lock and app-linked LCD are part of the model, so make sure those features are relevant to your setup.
Compatibility, Size and Fit
This bike uses 20 x 4.0 inch tyres and a folding aluminium frame, so the main fit checks are riding position, storage space and how you plan to carry or park it. The tyre size and folding format are the most useful things to compare before choosing an offer.
If you want the bike for a particular route or storage location, check the space available when folded and make sure the riding controls, gearing and battery setup suit your routine.
What Is Included
The core product is the VARUN folding electric bike with the stated battery, NFC lock, app LCD, lighting, full suspension, mag wheels, mudguards and rustproof chain. The supplied content also names the 7-speed transmission, dual disc brakes and the 4 riding modes.
How It Works
The NFC lock prevents the bike from turning on without the unique NFC card. The app mirrors dashboard data to a phone, showing speed, mileage and battery status. Riding modes, speed levels and the 7-speed transmission give the rider several ways to set up the bike for different journeys.
Before You Decide
Confirm that the 20 x 4.0 inch folding format suits your space and riding style. Check that the 48V 13Ah battery and stated up to 120 km range match the distance you expect to cover. Make sure the NFC lock, app LCD and StVZO lighting are the features you want before choosing an offer.






