How to ensure the quality of your bikes?

We have a complete QC system. Firstly, all the components purchased we will test out before using; secondly, we have quality control during every step in the production process; last but not least, we check all the performance after fully assembled including road testing before packing.

Strong quality controll : We test and check all the parts before on produce line. Check and test esch unit when it ready.

Are you trading company or manufacturer?

we are the professional electric bike and electric scooter manufacturer in china. Welcome to visit our company! Thank you so much for your value time. Any questions please feel free to contact me !

OEM 7 Gears 20" Bike Ebicycle High Speed Folding E Electric Bicycle

Name: OEM 7 Gears 20" Bike Ebicycle High Speed Folding E Electric Bicycle
Brand: Shenzhen Gravity Technology Co., Ltd.
SKU: 1977116655

Guangdong, ChinaShenzhen Gravity Technology Co., Ltd.

US$655.00

10-99 Boxes

US$635.00

100-199 Boxes

US$615.00

200+ Boxes

Sample price:US$755.00/box.Request sample

Product profile

Customization

Available

After-sales Service

12months

Warranty

12months

Model NO.

S20013

Wattage

>500W

Battery Voltage

48V

Battery Type

Lithium Battery

Wheel Size

20"

Motor

Brushless

Frame Material

Aluminum Alloy

Certification

Folded

Max Speed

20-40km/h

Range per Power

31-60km

Chain

Kmc

Tire

Kenda or Heng Shin

Charging Time

3.5hour

Dashboard

LED Display

Frame

Aluminum Alloy, Auto Shut off Power

Flywheel

7 Gears

Brake

Disc Brake

Brake Handle

Aluminum Alloy, Auto Shut off Power

Nedc

Accelerator Mode: 7.8ah-28-35km

Working Mode

Pedal Mode, Accelerator Mode, Sport Mode

Charger

Input: 100-240V AC Output: 42V DC/2.0A

Transport Package

Carton

Specification

CTN: 132*29*64CM G. W/N. W: 25kg/20kg

Trademark

GRAVITY

Origin

Shenzhen, China

Production Capacity

1000000

Key features

High-Speed Performance: Max speed up to 45km/h with 750W brushless motor and 7 gears.

Long Range Capability: Range up to 60km per charge with 48V 13AH lithium battery.

Foldable Design: Compact 20-inch folding frame suitable for city and beach riding.

Versatile Working Modes: Supports Pedal Mode, Accelerator Mode, and Sport Mode.

Large LCD Display: Clear display shows battery level, speed, odometer, and trip distance.

Durable Tires: 20-inch sandbeach tires from Kenda or Heng Shin for better comfort.

Fast Charging: Full charging time is only 3.5 hours with 42V DC charger.

Comprehensive Warranty: 12-month warranty covering after-sales service and mechanical defects.

Company profile

Shenzhen Gravity Technology Co., Ltd.

Guangdong, China

Business Type: Manufacturer/FactoryExport Year: 2006-08-28 CertifiedNearest Port: Shenzhen PortAverage Response Time: ≤1.99h 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?

Our factory is located in Shenzhen City China

Q:Can I get some samples?

yes,we offer sample for quality check. Considering electric bike as big item with certern value,we don't offer free sample and transportation fee is not contained in sample price.

Q:Can I have my own customized product?

Yes. Your customized requirements for color, logo, design, package, carbon mark, your language etc.

Q:What are the payment terms?

Price term of EXW, FOB, CNF, CIF, DDP, DDU are acceptable. -For bulk order, 50% deposit and 50% balance before shipment. -About the payment term, Gravity accept T/T , L/C, West Union, Money Gram,Visa, Mater Card and etc.

Q:How is the shipment handled?

If you have forwarder,we can sent the cargo to your forwarder. If not, Gravity will recommend you suitable shipping methods, such as by courier, air or sea shipment.Like DHL, UPS, Fedex, and TNT are acceptable.