Product Feature
Peak Motor
Max Range
Max Speed
Large Capacity Battery
Press and go
Suspension System
Payload Capacity
Fat Tires
Assist System
Battery Certification
BIGNIU BG-Zero Electric Dirt Bike
Built for riders who crave power and off-road adventure.
Product Feature
Peak Motor
Max Range
Max Speed
Large Capacity Battery
Press and go
Suspension System
Payload Capacity
Fat Tires
Assist System
Battery Certification
US Shipping time: About 3-5 days
Features
✅ Peak Motor: 2000W
✅ Max Speed: 31+MPH
✅ Per Changer: 50+Miles
✅ Large Capacity Battery: 48V/30AH
✅ Smart APP: Support
✅ Fingerprint Unlock: Support
✅ Max Torque: 80Nm
✅ Payload Capacity: 260lbs
✅ Suspension System: Full Suspension
✅ Assist System: Pedal Assist
Size-Chart
Bike length: 68.9 in
Bike height: 43.3 in
Handlebar length: 29.1 in
Seat height: 34.6 in
Tire size: 17 in
Wheelbase: 45.5 in
Recommended rider height: 5'4"–6'6"
Maximum load: 260 lbs
Manual
Pairs well with
In stock! Ships within 3-5 business days.
12 Month Warranty
30 Day Return
Complimentary shipping & returns
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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Shipping Information
Shipping fees are covered by BIGNIU and will be completed by FedEx throughout the United States. Once the order is shipped, a shipment confirmation email and shipment tracking will be sent to your email address. ( We DO NOT ship to PO BOXES or APO.) It may take 2-7 days to deliver.
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30 Day Risk Free Trial
We offer a 30-day trial period for all our brand new Ebike products. If you're not satisfied with the product, BIGNIU's return policy allows you to return it within 30 days of receipt. However, to qualify for this, your product must be free of wear, dirt, and the mileage on the odometer should be less than 10 miles.
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1 Year Warranty
All BIGNIU ebikes are included in the 1-year all-inclusive warranty provided by our manufacturer for the original owner in case of all manufacturing defects. The warranty service does not include free accessories and batteries). After the initial owner receives the product, he begins to enjoy a 1-year warranty period.
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Contact Us
If you have any questions regarding products, services, orders, or various types of support, please feel free to contact us.
Mail: website@bigniubike.com
POWER THAT OWNS THE TRAIL
Where the road ends, the BG-Zero takes over — turning every climb, corner, and stretch of rough terrain into controlled momentum. Built for serious off-road performance, the BG-Zero delivers immediate power with confident traction and precise control across steep climbs, loose surfaces, and demanding terrain.
YOUR FINGERPRINT. YOUR RIDE.
Instant access with advanced fingerprint recognition.
FINGERPRINT 1: Normal Speed
FINGERPRINTS 2–6: Limited to 18 MPH
CONNECTED INTELLIGENCE
Take full control of your 09 through the smart app. Unlock instantly, customize riding settings, manage fingerprint access, track every journey, and monitor battery status — all from your smartphone.
Smart control. Personalized performance.
Describe your third premium feature with compelling detail.
COMMAND AT YOUR FINGERTIPS
Unlock with your fingerprint. Adjust your ride settings. Access lights and signals—all within easy reach.
FULL-COLOR LCD DISPLAY
Your Ride, at a Glance.
Keep track of your speed, battery level, pedal assist level, and mileage on a clear, full-color display. Essential ride information, right where you need it.
FIND YOUR RHYTHM
Choose your gear with Shimano 7-speed shifting, control acceleration with the half-twist throttle, and keep the brake lever within easy reach.
Product details
Basic Information
Product Name: Off-Road Electric Bike
Brand: BIGNIU
Model: BG-Zero (FT-09)
Net Weight: 107.8 lb (48.9 kg)
Gross Weight: 131.4 lb (59.6 kg)
Carton Dimensions: 57.9 × 12.2 × 30.3 in
Overall Dimensions: 68.9 × 29.1 × 43.3 in
Max Speed: 35 mph (50 km/h)
Pure Electric Range: 50 miles
Available Color: Black
Riding Modes: 3
Operating Temperature: 14°F–122°F (-10°C–50°C)
Maximum Gradeability: 15°
Vehicle Body Information
Frame Material: Seamless Steel
Suspension: Inverted Front Fork / Rear Coil Spring Suspension
Bicycle Length: 68.9 in
Bicycle Height: 43.3 in
Overall Width: 29.1 in
Saddle Height: 34.6 in
Tire Size: 70/100-17, Front and Rear
Wheelbase: 45.5 in
Pedal Clearance: 5.5 in
Maximum Weight Capacity: 264.6 lb (120 kg)
Motor parameters
Rated Voltage: 48V
Drive System: Single Rear Motor
Rated Motor Power: 1000W
Motor Type: Geared Hub Motor
Peak Power: 2000W
Maximum Torque: 80 Nm
Wheel Size: 17 in, Front and Rear
Battery Pack Specifications
Rated Voltage: 48V
Rated Capacity: 30Ah
Cell Capacity: 4500mAh
Battery Configuration: 13S6P
Battery Weight: 14.0 lb (6.35 kg)
Maximum Charging Voltage: 54V
Charging Time: Approximately 9 Hours
Included in the Box
Bike
Charger
Manual
Tookit
Phone Holder
Air pump
BG-Zero FAQs
Please read our FAQs page to find out more.
1. What is the top speed of the BIGNIU 09?
The BIGNIU 09 can reach speeds of up to 35 mph . Actual speed may vary depending on rider weight, terrain, incline, and battery level.
2. How powerful is the motor?
It features a 1,000W rated rear hub motor with up to 2,000W peak output and 80 Nm of torque.
3. What is the riding range?
The estimated range is approximately 50 miles in pure electric mode. Actual range varies based on terrain, speed, rider weight, temperature, and riding style.
4. What battery does the BIGNIU 09 use?
The bike is equipped with a 48V 30Ah lithium-ion battery designed for extended off-road and everyday riding.
5. How long does it take to charge?
A full charge takes approximately 9 hours. Always use the supplied charger and charge the battery in a dry, ventilated area.
6. What types of terrain can it handle?
The BIGNIU 09 is built for trails, gravel, dirt roads, uneven surfaces, and mixed urban terrain. Its 70/100-17 off-road tires provide added traction and stability.
7. Does it have full suspension?
Yes. It combines an inverted front fork with a rear coil shock to help absorb impacts and improve control on rough terrain.
8. What braking system does it use?
The bike features front and rear hydraulic disc brakes with 180 mm rotors for responsive and consistent stopping power.
9. How steep a hill can it climb?
The BIGNIU 09 is rated for inclines of up to 15 degrees. Climbing performance depends on rider weight, surface conditions, speed, and battery level.
10. Does it have multiple riding modes?
Yes. The BIGNIU 09 offers three riding modes, allowing riders to balance power, assistance, and battery range.
11. What does the fingerprint display do?
The TFT display supports fingerprint unlocking and configurable speed-limit profiles while showing essential riding information such as speed, battery level, trip distance, and assist level.
12. What rider height is recommended?
The recommended rider height is approximately 5'7"–6'5" (170–195 cm). The seat height is 34.6 inches (880 mm), so individual fit may vary depending on inseam length.
13. What is the maximum load capacity?
The maximum recommended load is 300lb, including the rider and any carried cargo.
14. What lighting and safety features are included?
The BIGNIU 09 includes a front headlight, turn signals, a rear brake light, and a horn for improved visibility and awareness.
15. Is the BIGNIU 09 street legal?
Electric-bike regulations vary by country, state, and city. Riders should check local laws regarding motor power, speed limits, registration, and permitted riding areas before use.