FEATURED LONGTAIL CARGO / FAMILY PLATFORM LG-CELL BATTERY
JSL039FU

20" Longtail Cargo Electric Bike

One Longtail Platform for Family, Utility and Fleet Programs.

JSL039FU combines an extended longtail frame with a 500W rear motor, 48V17.5Ah LG-cell battery, hydraulic disc brakes and 20-inch fat tires. Its compact wheel format and extended rear carrying area make it a versatile platform for family mobility, everyday utility, rental fleets and dealer-focused cargo e-bike programs.

500W Rear Motor
48V 17.5Ah LG-Cell Battery
20" × 4.0 KENDA Fat Tires
Hydraulic Front / Rear Disc Brakes
Longtail Rear Platform Shimano 7-Speed Front Suspension Color LCD
OEM / ODM Available · Motor, speed and control setup can be configured according to destination-market requirements

Why Longtail? More Utility Without the Bulk of a Front-Loader.

JSL039FU keeps a familiar bicycle-style layout while adding significantly more rear carrying space for family and utility programs.

LONGTAIL

Extended Rear Platform

More rear carrying space than a conventional city or fat-tire e-bike.

20"

Compact Wheel Format

Smaller wheels help keep the longtail platform manageable and visually balanced.

4.0"

Fat-Tire Stability

Wide KENDA tires create a stable stance and strong retail recognition.

MULTI

Multiple Product Positions

Family, utility, rental and fleet strategies can all start from the same platform.

JSL039FU longtail cargo electric bike
LONGTAIL CARGO ARCHITECTURE

Cargo Capacity in a Familiar Bicycle Layout

Unlike a large front-loader cargo bike, JSL039FU extends carrying capacity behind the rider while maintaining a narrower, more conventional bicycle profile.

Extended Rear Carrying Area

The longtail structure creates additional space for cargo, passenger-oriented accessories and utility configurations.

Compact 20-Inch Wheels

Helps keep the overall platform lower and easier to position than larger-wheel cargo bicycles.

Fat-Tire Stability

20" × 4.0 KENDA tires give the bike a more planted stance for everyday utility and mixed-use programs.

REAR UTILITY SYSTEM

The Rear Section Is the Core of the Product Story

For JSL039FU, the extended rear structure is more than a visual feature. It is what allows one platform to serve different family, cargo and fleet-oriented programs.

Cargo-Oriented Layout Suitable for bags, boxes and everyday carrying configurations.
Accessory Potential Selected passenger, cargo and utility accessories can be discussed according to your program.
Flexible Dealer Positioning The same core bike can be developed around family, utility or commercial-oriented retail concepts.
JSL039FU rear longtail cargo platform

A Closer Look at the JSL039FU Platform

Use real product detail photography here to show the components that support longtail utility and higher-spec dealer positioning.

JSL039FU longtail frame detail
LONGTAIL PLATFORM Extended Rear Utility Architecture
JSL039FU LG battery
BATTERY 48V17.5Ah LG-Cell Battery
JSL039FU hydraulic disc brake
BRAKING Hydraulic Disc Brakes
JSL039FU Kenda fat tire
TIRE 20" × 4.0 KENDA
JSL039FU color LCD
COCKPIT 5 / 9 PAS Color LCD
JSL039FU suspension fork
COMFORT Front Suspension Fork
DRIVE + BATTERY SYSTEM

A Strong Everyday Utility Configuration

JSL039FU combines a 500W rear motor with a 48V17.5Ah LG-cell battery, giving distributors a specification package suitable for higher-positioned longtail and utility programs.

500W
Rear Motor Electric assistance for utility, family and mixed-use longtail programs.
48V17.5Ah
LG-Cell Battery A higher-capacity battery specification for more demanding daily use.
7-SPD
Shimano Drivetrain Mechanical gearing supports varied routes and riding conditions.
MARKET
Configurable Setup Power, speed and control configuration can be discussed according to destination-market requirements.

One Longtail Platform. Three Strong Product Positions.

JSL039FU is valuable to distributors because the same core platform can support multiple customer groups and retail strategies.

FAMILY

Family Mobility

A longtail format gives family-oriented dealers more flexibility than a standard commuter e-bike.

Passenger-oriented accessory potential Daily family errands Compact 20-inch platform
FLEET

Rental & Project Programs

A recognizable longtail platform can also support rental, resort, campus and selected fleet-oriented programs.

Distinctive product format Practical rear utility OEM / private-label potential
DEALER PROGRAM

A Main Product Worth Building a Program Around

Instead of treating JSL039FU as one isolated model, dealers can use the longtail platform as the foundation for different family, utility and fleet-oriented offers.

Retail Version Position around longtail practicality, fat-tire stability and everyday mobility.
Family Version Discuss passenger-oriented accessories and family-use configuration according to your target market.
Utility Version Build around rear cargo use, durable components and practical everyday equipment.
Private Label Color, branding, electrical configuration and selected components can be developed around your program.

Build Your Own JSL039FU Longtail Program

Start with the proven longtail platform and configure the product around your market, customer group and retail strategy.

01
Market Setup Define target country, use case and regulatory requirements.
02
Battery Discuss battery strategy around your target use and retail position.
03
Cargo Setup Build the rear utility configuration around your customer group.
04
Color & Branding Frame finish, logo and private-label support.
05
Components Discuss controls, drivetrain and selected bicycle components.
06
Packaging OEM carton and branded packaging support.
Motor power, maximum speed, throttle and control strategy should be configured according to the requirements of the destination market.

Why Build Your Longtail Program with JSL?

A priority cargo platform backed by long-term bicycle manufacturing, frame production and OEM / ODM capability.

JSL electric bike factory
Since 1999 Long-term bicycle and electric-bike manufacturing experience.
Own Frame Production Frame development and manufacturing supported within our own production system.
Cargo Platform Experience Longtail and front-loader cargo product development for different B2B programs.
OEM / ODM Support Branding, appearance and selected configuration support for dealer programs.

Build Your Longtail Cargo E-Bike Program with JSL039FU

Tell us your target market, customer group and expected quantity. We can discuss JSL039FU pricing, battery strategy, cargo configuration, accessories and OEM / ODM requirements for your family, utility or fleet program.