QNUT BK20 Fat Tire Electric Bike – 1500W Peak, 48V 18Ah
$999.99
The QNUT BK20 electric bike pairs retro styling and a brown saddle with 20 × 4.0-inch fat tires. Ride with pedal assist or throttle power, backed by a removable 48V 18Ah battery, 1500W peak motor, front/rear suspension, mechanical disc brakes and a 5.6-inch color display. QNUT advertises up to 28 mph and 60–90 miles of range; actual results vary.
Buy online and choose Local pickup at checkout. Order before 5:00 PM Monday–Friday, or before 3:00 PM Saturday, for same-day pickup after store confirmation. Orders placed after the daily cutoff or outside showroom hours are ready the next business day. You can also choose a later available pickup date at checkout.
Pickup location: 1530 E Sample Rd, Pompano Beach, FL 33064
View store location & hours3 in stock
Help Before and After Your Purchase
Use our buyer’s guides to compare your options, or visit the Service Department for maintenance, repairs, parts, and local support.
- Description
- Specifications
- Size & Fit
- Included & Dealer Prep
- Warranty & Support
- Financing
- Inventory Notice
Description
QNUT BK20 Fat Tire Electric Bike
The QNUT BK20 electric bike brings retro styling to everyday electric riding. The bike shown at Scooter Ave pairs a black finish and brown saddle with wide fat tires, front and rear suspension, and a rear-hub electric motor. Choose pedal assistance for an active ride or use the twist throttle for motor-powered travel.
Power, battery and riding modes
- 1500W peak motor output: QNUT’s advertised peak rating, not a continuous-power rating.
- 48V 18Ah removable lithium battery: 864Wh nominal energy, calculated from voltage and capacity.
- Up to 28 mph: manufacturer-advertised maximum speed, with three throttle settings of 15, 20 and 28 mph.
- Advertised 60–90-mile range: a manufacturer estimate, not a guaranteed distance.
- Start-from-rest throttle: QNUT describes throttle acceleration without first pedaling.
- Pedal assistance and pedal-only riding: Level 0 disables motor assistance; the rider selects an assistance level to re-engage it.
- 7-speed bicycle drivetrain: separate mechanical gearing for pedaling.
Comfort, control and visibility
- 20 × 4.0-inch fat tires and front/rear suspension.
- Wide, contoured leatherette saddle with a vintage appearance.
- Front and rear mechanical disc brakes.
- High-intensity front light, rear running light, brake light and rear turn signals.
- 5.6-inch color display showing speed, battery status and selected gear.
Electronic protection features
QNUT’s product-page FAQ describes the following protections for its e-bikes:
- Brake sensors cut motor power and pedal assistance when a brake lever is applied.
- Temperature monitoring can reduce or disengage motor output if the system overheats.
- Extended continuous throttle use may trigger a temporary output limit.
- Battery management monitors battery health, protects against over-current and enters sleep mode after extended inactivity.
- A self-diagnostic controller checks the system and reports faults through error codes.
Choosing your ride
Actual speed and range depend on rider weight, terrain, temperature, tire pressure and riding mode. The three throttle settings are not seven bicycle gears or a verified count of pedal-assist levels. Follow the supplied manual and local access rules. A 28 mph specification does not establish a legal e-bike class or road/path eligibility.
Product identification
Carton model/SKU: HRBK20-A1001-USA. Carton-marked net weight: 78 lb. Packaged gross weight: 101 lb. Carton dimensions: 56 × 10.8 × 31.9 inches; these are packaging dimensions, not assembled-bike measurements.
Feature reference: QNUT’s official BK20 product page. See the product FAQs and Warranty & Support details for additional information.
Specifications
| Brand | QNUT |
|---|---|
| Condition | New |
| Vehicle Type | E-Bike |
| Color | Black |
| Fuel / Power Source | Electric |
| Engine Type / Configuration | Rear hub electric motor |
| Motor Power | 1500 W peak |
| Number of Gears | 7 |
| Final Drive | Hub Motor |
| Maximum Power | 1500 W peak |
| Maximum Speed | Up to 28 mph (manufacturer-advertised) |
| Electric Range | 60–90 miles (manufacturer estimate; conditions vary) |
| Front Brake | Mechanical Disc |
| Rear Brake | Mechanical Disc |
| Tire Size | 20x4.0 |
| Front Tire | 4.00 x 20 |
| Rear Tire | 4.00 x 20 |
| Frame Type | Carbon Steel |
| Battery Type | Lithium-Ion |
| Battery Voltage | 48 V |
| Battery Capacity | 18 Ah |
| Pedal Assist | Yes |
| Controller | Self-diagnostic controller with error-code reporting (manufacturer-described) |
| Dashboard | 5.6-inch color display |
| Headlight | LED |
| Taillight | LED Brake Taillight |
| Turn Signals | Rear turn signals |
| Intended Use | Commuting, Off-Road, Recreation, Touring |
| Terrain | Dirt, Grass, Gravel, Mixed Terrain, Sand, Trail, Paved Surface, Street |
| Passenger Capacity | 1 Passenger |
| Pedal Assist | Yes; Level 0 is pedal-only with motor assistance disabled. |
| Controller | Self-diagnostic controller with error-code reporting (manufacturer-described). |
Size & Fit
| Curb / Net Weight | 78 lb |
|---|---|
| Gross Weight | 101 lb (packaged) |
Included & Dealer Prep
Air pump
Lock
Manual
Tool kit
Every vehicle sold by Scooter Ave is professionally assembled, inspected, tested, and prepared by technicians in our Service Department before pickup or delivery.
Warranty & Support
Manufacturer Warranty
Manufacturer warranty summary: QNUT publishes one year of coverage for qualifying electronic-component manufacturing defects and frame/fork defect coverage for the original owner. Coverage is subject to QNUT’s full policy, including registration within 30 days of delivery, authorized-retailer eligibility, exclusions and applicable shipping costs. Confirm eligibility for this purchase; the linked manufacturer policy supplies the full terms.
Scooter Ave Support
Scooter Ave is your local point of contact for product, warranty, and service support. If you need help with a warranty concern or service question, contact our team and we’ll help you with the next step.
Financing
Scooter Ave offers flexible financing options through multiple financing partners for qualified buyers. Contact us or apply online to learn more about available options.
Inventory Notice
Product specifications, colors, equipment, pricing, and
availability may vary. Please contact Scooter Ave to verify
current inventory and product details.
Frequently Asked Questions
Do I have to pedal the BK20?
No. QNUT describes throttle operation from a standstill, plus pedal-assisted riding. Select Level 0 for pedal-only use with motor assistance disabled.
How fast can it go, and what range should I expect?
QNUT advertises up to 28 mph and 60–90 miles of range. Throttle settings are 15, 20 and 28 mph. Rider weight, terrain, temperature, tire pressure and riding mode affect results; maximum speed and range are not guaranteed together.
What brakes and lights does it have?
Front and rear mechanical disc brakes, a high-intensity headlight, taillight, brake light and rear turn signals. QNUT also describes brake sensors that interrupt motor power when a lever is applied.
What information is shown on the display?
The 5.6-inch color display shows speed, battery status and selected gear. QNUT describes it as readable in sunlight.
What protects the motor and drivetrain?
According to QNUT, thermal monitoring can reduce or disengage motor output if temperatures rise too high. Prolonged continuous throttle use may also temporarily limit output. The controller checks for faults and reports error codes.
What battery protections are included?
QNUT describes a battery management system that monitors battery health, protects against over-current and enters sleep mode during extended inactivity. These features do not replace the charging and storage instructions supplied with the bike.
Is the BK20 street legal or a specific e-bike class?
The official product page does not establish a legal class, license requirement or universal road/path approval. Confirm the actual bike’s classification label, configured settings and local rules before riding in public.
What manufacturer warranty does QNUT describe?
QNUT publishes a limited warranty with one year of electronic-component coverage and frame/fork manufacturing-defect coverage for the original owner. Its full policy requires registration within 30 days, includes authorized-retailer eligibility and exclusions, and may require shipping costs. Confirm eligibility for this purchase and review the linked policy in Warranty & Support.
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