Baicycle U03 Step Thru Fat Tire Electric Bike
- Maximum Weight Recommendation: 265 pounds
- Wheel Size: 20 inches
- Size: Large
- Wattage: 500 watts
Last refreshed Jun 21, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A budget ebike that most buyers found fast to assemble and pleasant to ride, but top speed and handlebar tightness varied enough between units that it is worth checking your own bike closely after unboxing.
As an Amazon Associate I earn from qualifying purchases. ProductDome earns a commission when you buy through links on this page.
ASIN: B0FQ5BJTRNModel: U03Category: Electric Bicycles
Colors Available
Need a different one? Pick on Amazon →
Overview
The U03 from Baicycle pairs a step-through aluminum frame with 20 x 3 inch fat tires, a 48V removable battery and four selectable ride modes for commuting.
Amazon's listing claims a 1200W peak motor and up to 90 miles of pedal-assist range, but reviewer experience varies more than the spec sheet suggests: some buyers hit the advertised 28 mph cutoff, others report the same bike capped at 20 to 22 mph. One buyer also flagged loose handlebars and a low ground clearance that scraped on potholes for a shorter rider.
- 48V 13Ah (624Wh) removable, lockable battery
- LED headlight, taillight and dual disc brakes
- Step-through aluminum alloy frame with adjustable seat
- Shock-absorbing front suspension
Who it's for
Riders wanting an affordable step-through commuter ebike with a removable battery and multiple ride modes: pure electric, pedal assist and standard bicycle.
Pros and cons
- Removable 48V battery for indoor charging
- Four ride modes cover commuting to workout riding
- Top speed reported inconsistently, some capped near 20 mph
- One reviewer found the handlebars loosened and moved
- Low ground clearance can scrape on rough pavement for shorter riders
Performance notes
The 48V 13Ah battery is rated for roughly 50 miles in electric-only mode and up to 90 miles with pedal assist, and the bike offers four modes plus adjustable assist levels. Real-world top speed reported by owners ranged from about 20 mph to the advertised 28 mph, suggesting some variance between units.
Specifications
| Brand | Baicycle |
|---|---|
| Model | U03 |
| Dimensions & fit | |
| Maximum Weight Recommendation | 265 poundslower than 84% of 266 electric bicycles |
| Wheel Size | 20 inches |
| Size | Large |
| Wheel Width | 3 incheslower than 67% of 243 electric bicycles |
| Capacity & performance | |
| Number Of Speeds | 7 |
| Bicycle Drivetrain Type | Derailleur |
| Bicycle Gear Shifter Type | Trigger |
| Age Range Description | Adult |
| Power & efficiency | |
| Wattage | 500 wattslower than 70% of 197 electric bicycles |
| Power Source | Corded Electric |
| Construction & materials | |
| Frame Material Type | Aluminum |
| Wheel Material | Aluminum |
| Warranty & support | |
| Warranty Description | 2 years |
| Warranty Type | Limited |
| Other details | |
| Electric Assist Type | Pedelec and Throttle |
| Brake Style | Disc |
| Suspension Type | Front |
| Bike Type | Electric Bike, Fat Tire |
| Derailleur Configuration | Rear |
| Is Assembly Required | No |
| Model Year | 2026 |
| Theme | Sport |
Closest rivals on specs
Gotrax R1 20 Inch Folding Electric Bike- Wattage 500 vs 350 watts (+43%)
Frequently asked questions
Is the battery removable for charging?
Yes, the 48V 13Ah battery detaches from the frame and includes an anti-theft lock and key.