Kaijielaisi V3-2 Dual Motor Fat Tire Ebike 4000W
- Wheel Size: 26 inches
- Size: Large
- Wattage: 2000 watts
- Electric Assist Type: Hub Motor, Pedal Assist, Throttle Assist
Last refreshed Jun 21, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A strong pick for riders who actually need dual motor traction on hills, sand, or snow, provided you inflate the tires carefully and keep an eye on the derailleur.
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ASIN: B0FK29KZ43Model: V3-2Category: Electric Bicycles
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Overview
Kaijielaisi's V3-2 is a 26 inch fat tire e-bike built around two hub motors that combine for a peak of 4000W, with an all wheel drive layout meant for adults who ride steep, loose, or slick terrain rather than pavement alone. A 48V 22.4AH removable battery and 21-speed drivetrain back up the dual motor setup.
The riding modes are the real story here: the front motor can be switched on or off independently, so the bike runs as a lighter single motor ebike around town and adds front wheel traction only when sand, snow, or a climb calls for it. Front suspension and dual hydraulic disc brakes are matched to that use case, since AWD power without stopping power on loose ground would be a liability. It ships about 85 percent assembled with an installation video, and Kaijielaisi backs it with a one year warranty.
- Dual 2000W motors, 4000W peak combined output
- 48V 22.4AH removable battery, UL 2849 certified
- 21-speed drivetrain with 6 selectable riding modes
- Front suspension fork with dual hydraulic disc brakes
Who it's for
This suits a heavier or taller rider who wants a genuinely capable off-road ebike and does not mind a heavy bike to store and lift. It is a poor match for anyone who wants to carry a bike up stairs daily or who has no patience for troubleshooting electronics if a unit arrives with a fault.
Pros and cons
- Front motor toggles on for snow or sand traction
- Riders confirmed real 30 mph speeds in testing
- Hydraulic brakes front and rear for wet-weather stopping
- Heavy bike, not easy to lift or store
- Derailleur bends easily during rough tire changes
- One buyer got a dead unit with slow, unhelpful support
Performance notes
The dual 2000W motors (4000W peak combined) push the bike to a claimed 33 mph in PAS level 5, with a handlebar switch to toggle between single and dual motor drive depending on terrain. The 1076Wh battery is rated for 50-plus miles in pedal assist and 30-plus in full electric mode, with an 8 to 10 hour recharge. Front and rear hydraulic disc brakes are sized for the bike's weight and speed rather than added as an afterthought.
Specifications
| Brand | Kaijielaisi |
|---|---|
| Model | V3-2 |
| Dimensions & fit | |
| Wheel Size | 26 incheshigher than 63% of 409 electric bicycles |
| Size | Large |
| Wheel Width | 4 inches |
| Item Weight | 103 pounds |
| Capacity & performance | |
| Number Of Speeds | 21 |
| Bicycle Drivetrain Type | Electric |
| Bicycle Gear Shifter Type | Thumb |
| Age Range Description | Adult |
| Power & efficiency | |
| Wattage | 2000 wattshigher than 86% of 197 electric bicycles |
| Power Source | Rechargeable Battery |
| Battery Life | 3 hours |
| Lithium Battery Energy Content | 1103.99 Watt Hours |
| Construction & materials | |
| Frame Material Type | Aluminum |
| Wheel Material | Aluminum |
| Fender Material | Polyethylene |
| Color | Black Green |
| Warranty & support | |
| Warranty Description | 1 year |
| Warranty Type | Limited |
| Other details | |
| Electric Assist Type | Hub Motor, Pedal Assist, Throttle Assist |
| Brake Style | Disc |
| Suspension Type | Front |
| Bike Type | Electric Bike |
| Derailleur Configuration | Front And Rear |
| Is Assembly Required | Yes |
| Model Year | 2025 |
| Specific Uses For Product | Trail |
| Style Name | V3 |
| Theme | Sport |
| Skill Level | Beginner |
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Frequently asked questions
How fast does the Kaijielaisi V3-2 go?
Kaijielaisi rates it up to 33 mph in PAS level 5, and one reviewer at 170 lbs confirmed hitting 30 mph without full throttle.
Does the V3-2 use both motors at once?
You can run it as dual motor AWD or switch the front motor off to ride on the rear motor alone, useful for saving battery on pavement.
How much assembly does the Kaijielaisi V3-2 need?
It arrives about 85 percent assembled, with English instructions and an installation video for the remaining steps.