At a glance
The NIU BQi FAT Tire 300 Step Through is a all terrain electric bike listed at $799. Manufacturer specs put it at 750W of rated motor power, a 768Wh battery, a claimed 50 mile range, and a 28 mph top speed, at 79 lbs.
Next to the 33 other electric bikes in its price band ($599–$999), its strongest numbers are included features (9 features vs 7 features avg). The tradeoffs are charge time (6 h vs 4.7 h avg) and claimed range (50 mi vs 65 mi avg). Beyond the headline numbers it brings an IP45, safe for light rain ingress rating.
Spec-based analysis, computed from manufacturer-published numbers and compared against 33 similar electric bikes by price. No hands-on testing yet.
Strengths & weaknesses
Designed for: Varied Terrain Including Sand and SnowStrengths
9 features vs 7 features avg
IP45, safe for light rain
Weaknesses
6 h vs 4.7 h avg
50 mi vs 65 mi avg
308 lbs vs 367 lbs avg
9.7 Wh/lb vs 10.6 Wh/lb avg
Compared with 33 similarly priced models ($599–$999), from manufacturer specs.
Performance Overview
Category scores out of 100 from manufacturer specs, with the median of 33 similarly priced e-bikes ($599–$999) for context
Scores out of 100. The gray tick marks the median of similarly priced e-bikes.
How to read this: each spoke is a category score out of 100, computed from manufacturer specs on fixed scales. Every vehicle is measured on the same scales, so scores don't shift as our database grows. Further from the center is better. The gray line shows the median score of similarly priced e-bikes for context.
Full Specifications
NIU BQi FAT Tire 300 Step Through
Powertrain
- Motor Type
- Hub Brushless
- Nominal Power
- 750 W
- Peak Power
- 1000 W
- Torque
- 85 Nm
- Sensor Type
- Torque
- Assist Levels
- 3
- Throttle
Battery & Range
- Capacity
- 768 Wh
- Amp-Hours
- 16 Ah
- Voltage
- 48 V
- Claimed Range
- 50 mi80.5 km
- Charge Time
- 6 h
Build Quality
- Front Brake
- Hydraulic Disc
- Rear Brake
- Hydraulic Disc
- Front Rotor
- 180 mm
- Rear Rotor
- 180 mm
- Gears
- 8
- Drive System
- Chain
- Gearing
- Derailleur
- Derailleur
- Shimano Altus
- Cassette
- 8 Speed, 12 32T
- Frame Material
- Aluminum
- Puncture Protection
- UL 2849
Ride Comfort
- Front Travel
- 80 mm
Utility
- Weight
- 79 lbs35.8 kg
- Max Load
- 308 lbs139.7 kg
- Rear Rack
- Rear Rack Capacity
- 66 lbs29.9 kg
- Fenders
- Kickstand
- IP Rating
- IP45
- Lights
- Display
- TFT
- Connectivity
- Bluetooth
- App Compatible
- Warranty
- 24 mo
Classification
- Category
- All Terrain
- Top Assist Speed
- 28 mph45.1 km/h
Wheels & Tires
- Wheel Size
- 26"
- Tire Size
- 26x4.0
- Tire Category
- Fat
- Tire Brand
- NIU
Frame & Geometry
- Frame Style
- Step Through
- Min Seat Height
- 34.3"87.1 cm
- Max Seat Height
- 41.7"105.9 cm
Smart Features
- USB Output
Compare NIU BQi FAT Tire 300 Step Through to other vehicles
Pick a challenger and see every spec side by side.
NIU BQi FAT Tire 300 Step ThroughvsSimilar E-Bikes
Browse all →
Worth reading
All guides →
Best Of
Best Electric Bikes Under $1000: Budget E-Bikes That Don't Compromise on Quality
Finding a quality electric bike under $1000 takes strategy. We break down the best value e-bikes, what specs matter most, and where to compromise smartly.
Best Of
Best Cargo Electric Bikes of 2026: Family Haulers, Budget Options, and Long Range Models
We compare the top cargo electric bikes for hauling kids, groceries, and gear, from budget friendly models under $1,500 to long range workhorses.
Best Of
Best Folding Ebikes of 2026: Compact, Portable Electric Bikes for Minimal Storage
The best folding ebikes balance portability with performance, offering full-size power in a package that fits in your trunk or under your desk.