How do you ensure the quality of your bikes?

We have a complete QC system: testing all components before use, quality control during production, and performance checks including road testing before packing.

20*4 20 Inch Electric ATV E Bike Disc Brake Electric Bicycle Aluminum Alloy Ebike

Name: 20*4 20 Inch Electric ATV E Bike Disc Brake Electric Bicycle Aluminum Alloy Ebike
Brand: Shenzhen Gravity Technology Co., Ltd.
SKU: 1974561995

Guangdong, ChinaShenzhen Gravity Technology Co., Ltd.

US$759.00

10-99 Boxes

US$735.00

100-199 Boxes

US$725.00

200+ Boxes

Sample price:US$859.00/box.Request sample

Product profile

Customization

Available

After-sales Service

12month

Warranty

12month

Model NO.

S20020X

Wattage

>500W

Battery Voltage

48V

Battery Type

Lithium Battery

Wheel Size

20"

Motor

Brushless

Frame Material

Aluminum Alloy

Certification

Folded

Unfolded

Max Speed

20-40km/h

Range per Power

>60km

Chain

Kmc

Tire

20*4.0

Charging Time

3.5hour

Dashboard

LED Display

Frame

Aluminum Alloy, Auto Shut off Power

Cassette

7 Speed

Brake

Disc Brake

Brake Handle

Aluminum Alloy, Auto Shut off Power

Nedc

Accelerator Mode: 40-120km

Working Mode

Pedal Mode, Accelerator Mode, Sport Mode

Charger

Input: 100-240V AC Output: 56V DC/2.0A

Color

Black

Transport Package

Carton

Specification

CTN: 140*33*82cm G. W/N. W: 41kg/37kg

Trademark

GRAVITY

Origin

Shenzhen, China

Production Capacity

1000000

Key features

20 Inch Sandbeach Tires: 20*4.0 inch tires designed for sand, snow, and all-terrain riding.

Powerful Brushless Motor: 48V 500W brushless DC motor with 1000W optional upgrade for enhanced speed.

Long Range Battery: 48V LG Li-ion battery provides over 60km range per charge.

Multi-Mode Working: Supports Pedal Mode, Accelerator Mode, and Sport Mode for versatile riding.

Large LCD Display: Front-center display shows speed, battery level, odometer, and trip distance.

7-Speed Gear System: Adjustable 7-gear transmission with qualified brand components for efficiency.

Front Shock Absorber: Front suspension system ensures safety and comfort on rough terrain.

Customizable Options: Customization available for color, logo, design, package, and carbon mark.

Company profile

Shenzhen Gravity Technology Co., Ltd.

Guangdong, China

Business Type: Manufacturer/FactoryExport Year: 2006-08-28 CertifiedNearest Port: Shenzhen PortAverage Response Time: ≤1.44h CertifiedTerms of Payment: LC, T/T, D/P, etc. CertifiedInternational Commercial Terms(Incoterms): FOB, CIF, CFR

AI-Powered supplier vetting

SummaryShenzhen Gravity Technology Co., Ltd. is a China-based trading company established in 2017, focused on electric bikes and related bicycle products. The supplier reports annual electric-bike output of 200,000 pieces, three production lines, a 500 m² manufacturing plant, and six to ten quality-control staff. It exports to South America, Southeast Asia/Mideast, Europe, Australia, and North America, with stated export sales of 71%–90% and access to Shenzhen and Guangzhou ports. OEM and ODM services are offered, supported by three years of R&D-engineer experience. The supplier describes lifelong service and fast response, but no certifications or customer cases are provided. Financial assessment is limited because monetary information is excluded.

Supplier typeThe supplier is explicitly identified as a trading company and limited company headquartered in Shenzhen, China. Its stated activities include electric-bike products, OEM/ODM services, exporting through agents and self-operated export rights, and broad international markets.

After-Sales capabilityThe supplier states that it provides a complete service system including lifelong service, fast response, and constructive customer suggestions. These are explicit service claims, although no service metrics, procedures, or independently verified evidence are provided.

R&D capabilityThe supplier offers OEM and ODM services and reports three years of R&D-engineer experience, indicating some product-development capability. However, no patents, new-product records, engineering resources beyond this figure, or innovation outcomes are stated.

Production capacityThe supplier reports annual electric-bike output of 200,000 pieces, three production lines, a 500 m² manufacturing plant, and six to ten quality-control staff. It also states one-month off-peak lead time and two-to-three-month peak-season fulfillment, providing explicit evidence of established production capacity.

Customization capabilityOEM and ODM services are explicitly stated as available, and the supplier promotes one-stop service for diversified needs. This supports customization capability, although the scope of customization and technical limits are not specified.

Product Q&A

Q:Where is your company located and how can I visit?

Our factory is located in Shenzhen City, China. You are welcome to visit us.

Q:Can I get a sample and how long does delivery take?

Yes, we offer one or two free samples for quality check. You need to pay the shipping fee, which will be deducted from the total cost when you place an order.

Q:Can I have a customized product?

Yes, we accept customized requirements for color, logo, design, package, carbon mark, and language.

Q:What are the payment terms?

We accept EXW, FOB, CNF, CIF, DDP, and DDU. For bulk orders, 50% deposit and 50% balance before shipment. Payment methods include T/T, L/C, West Union, Money Gram, Visa, and Master Card.

Q:How is shipment handled?

If you have a forwarder, we can send cargo to them. Otherwise, we recommend suitable methods like courier, air, or sea shipment via DHL, UPS, FedEx, or TNT.