The STRETCH is a lightweight, durable longtail cargo e bike designed for urban families, deliveries, and everyday utility. Its aerospace-grade aluminum frame, extended rear carrier, and Shimano 7-speed shifting offer versatile transport for passengers or cargo.
Equipped with 20” wheels front and rear, it delivers excellent balance and maneuverability, even when fully loaded. A 55N·m AKM hub motor paired with a high-capacity battery provides smooth pedal assist and a dependable 60–80 km range, making it a smart, low-maintenance choice for sustainable city mobility.

Motor Power
AKM Hub Motor 95RS 55N·m

Range
60-80 km per Charge

Gear
Shimano 7-Speed External Shifting System

Max Gross
Max. 200kg including Human, Vehicle & Goods

Tire
KENDA Tires, 20″ x 2.125

Customization
Support
UM STRETCH
Longtail Cargo E Bike - UM Stretch
Main Features
- Aerospace-Grade Aluminium Frame – Lightweight yet highly durable construction.
- Minimalist by Design - Clean Lines, Integrated Components, and No Visual Clutter
- Longtail. More Capacity. - The Sturdy Rear Carrier for Max Utility
- 40LUX High-Brightness Front Light – Enhanced visibility for safer night rides.
- Shimano 7-Speed Shifting - Smooth, Responsive Gear Changes Supported
- Reliable Rear Hub Motor (55N·m Torque) - Delivers Strong Performance on Hills and with Full Load
- High-Capacity Battery (Samsung Cells) -Delivers up to 80 km Assisted Range
- Responsive Braking System - Integrated Parking Brake for Stability during Loading or Stops.
- Durable, Flat-resistant Tires - Safety-enhancing Visibility for Urban Environments.
- Customizable Finish & Components - Tailored to Match Private Label or Fleet Branding Needs.

PIOWAY Hydraulic Disc Brakes
672Wh High-Capacity Battery
Puncture-Resistant Tires with Reflective Strips
King-Meter Display
AKM Hub Motor 95RS 55N·m
Just 40kg – Easy to Handle, Transport, and Ride
- Main Specifications
Overall Dimension | 1900×640×1120mm(L×W×H) |
Weight | 40 kg |
Motor & Torque | AKM Hub Motor 95RS 55N·m |
Battery | 672 Wh,Samsung Battery Cells |
Battery Performance | 6–8h Charge, 60-80 km Range. (Dependent on terrain, rider weight, and assist level) |
Wheel Size | KENDA Tires, Front: 20×2.125″ – Rear: 20×2.125″, with Puncture-Resistant Belt and Reflective Strips |
Maximum Speed | 25km/h (Complies with EU Regulations) |
Gear Hub | Shimano 7-Speed External Shifting System |
Frame Material | Aerospace-Grade Aluminum 6061 |
Display | King-Meter K5351 |
Brakes | PIOWAY Hydraulic Disc Brakes |

As urban logistics and family transport evolve, the longtail e cargo bike is emerging as one of the most versatile solutions for European businesses. An investigative study highlights why this design stands out in urban environments: Analyzing the impact of bicycle geometry and cargo loading on the rideability and safety of cargo bikes. The longtail e-cargo bike appeals strongly to family riders—especially mothers with two children—thanks to its lightweight durability, long range, and urban-friendly design, making it a high-demand, cost-efficient option for brands targeting the European market.
If you are considering whether a longtail e cargo bike or a front loader is best for your business, our dedicated article “Why Long Tail Cargo E-Bike Is Gaining Momentum Across Europe” provides in-depth insights.
At UM, a trusted LongTail Electric Cargo Bike Manufacturer, we have developed the UM Stretch to answer these growing needs. This model blends high load capacity with everyday maneuverability, enabling B2B clients to serve diverse markets—from last-mile delivery services to family-oriented mobility solutions.
Excellence Tailored to Your Needs
Customer-Centric Services
At United Mobility, we put our customers first, delivering personalized solutions and exceptional support. From OEM/ODM customization to reliable warranty and responsive customer service, we are committed to ensuring your success with every step.
ODM Service
We specialize in fully customizable e-bikes, cargo bikes to match your unique specifications. With dedicated design and R&D teams, we deliver innovative and high-quality solutions tailored to your market.
Warranty Service
We ensure long-lasting performance and reliability. No worry about the after-sale service. Our commitment to quality means every product is backed by strict testing and certification.
Customer Support
Our responsive customer service team is here to assist you at every step, from pre-sales inquiries to after-sales support. With a 24-hour and 7 days a week response time, we prioritize your satisfaction and success.
Get A Quote
Tell Us Your Demand
Our experienced team is ready to provide tailored solutions to support your business growth.
Yes, we provide samples for market testing. Bulk orders are eligible for tiered discounts; Our Sales Team will offer you the detailed pricing.
Standard delivery time is 45-60 days , subject to order volume and production schedules. We provide shipping via sea, air, or express services depending on the demand, and support flexible trade terms like FOB, CIF, and DDP.
We offer customization for key components such as battery capacity, controller parameters, brake systems, paint colors, and more.(Click here for OEM/ODM service information)
Or simply share your requirements (e.g., design sketches or functional needs), and our team will provide a tailored solution.
Our products are certified with CE, TÜV, and E-MARK, meeting European and North American standards. The factory operates under the ISO9001:2008 quality management system with multiple inspections during production to guarantee high-quality products.
We offer a warranty of 2-8 years, covering core components such as motors and batteries. For after-sales support, contact us via our service email or hotline with your order number and a description of the issue. Our team will respond promptly.