Curl Ei4
Delivery on Oct 31, 2025
A compact, electric trifold built for effortless city rides.
Please note that this is a pre-sale product, and please note the delivery schedule we showed above. We support your Free Refund any time before delivery.
Warranty and service, please refer to our "Terms of Service". Don't hesitate to get in touch with us for any further questions at: service@dahon.com
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
-
Shipping Information
Use this text to answer questions in as much detail as possible for your customers.
-
Customer Support
Use this text to answer questions in as much detail as possible for your customers.
-
FAQ’s
Use this text to answer questions in as much detail as possible for your customers.
-
Contact Us
Use this text to answer questions in as much detail as possible for your customers.
Classic Bike With E-Power Inside
High-Performance Electric System
Torque sensor with stealth controller delivers precise power assist—effortless riding at your fingertips.
Detachable Battery
1.6kg detachable bottle battery with direct/removable charging—compact, portable, and theft-proof.
Up to 50km Assisted Range
5-level smart assist adapts to flat roads/climbs with 24N·m peak torque, delivering the exact support you need.
High-quality LG cells combined with intelligent BMS.
245Wh
Monitors battery usage status to provide a safer and more reliable experience.
Effectively avoids battery overheating and extends its lifespan.
Lightweight Front Hub Motor
36V 250W
Compact and highly efficient.
Classic Bike With E-Power Inside
Effortless Mobility
Navigate through crowded spaces with ease, thanks to smooth rolling and nimble handling.
Lightweight Freedom
Weighing just 17kg, Curl Ei4 lets you carry your ride comfortably wherever life takes you.
Space-Smart Design
Compact and sleek, it fits neatly into tight spots, making storage and transport hassle-free.
Safe Braking & Low Maintenance
DAHON Custom Braking System
Uncompromised stopping power even in the rain.
4-speed internal gear hub + 46T chainring low maintenance
More Details
Durable Secure Folding Hinge
Patented hinge design ensures quick folding with lasting stability and safety.
Sturmey-Archer internal Gear Hub
This significantly reduces wear on the chain and gears，making it ideal for daily commuting or long-distance touring.
Built-In Rear Rack
Rigid and wobble-free. Carry loads up to 10KG without extra weight or clutter.
Headlights
Improved Night Riding: A strong headlight illuminates the road ahead, helping you spot potholes, debris, and obstacles.
5 Levels of Assist
LCD display accommodated 5 levels of electric assist, and automatic sleep function
Specifications
FAQs
Please read our FAQs below to understand more.
HOW SAFE AND STURDY ARE FOLDING BICYCLES? WILL IT FOLD WHILE I’M RIDING IT?
All our frames and folding components are built in our own ISO 9001 certified factories, and all our bicycles exceed the rigorous U.S. and European strength and safety standards, as well those of Japan, Germany, the UK and France.All our engineering designs are rigorously tested and re-tested in our own laboratories. DAHON DoubleLok technology makes our latches and locks virtually fail-safe.
ARE SMALLER WHEELS SLOWER THAN LARGE WHEELS?
Relatively speaking, no. A small wheel has slightly higher rolling resistance than a larger wheel, but this is only one aspect of “speed.” Small wheels offer several performance advantages: they accelerate faster due to a lower moment of inertia,are more aerodynamic, and lighter. In fact, the world speed record for a bike ridden in an upright position was set on abike with 18″ wheels. With DAHON's latest "DAHON-V" technology, our small-wheeled bikes are now even faster than many larger-wheeled models, redefining performance and efficiency in compact cycling.
WHY CHOOSE DAHON OVER OTHER BRANDS?
DAHON is the world’s leading manufacturer of folding bikes – and has been for over 40 years. What’s more, 95% + of all folding bikes on the market today rely on DAHON’s pioneering technology.
WHAT’S THE ADVANTAGE OF A DAHON FOLDING BICYCLE?
Folding bicycles can go anywhere you go. Whether you ride the entire way or go part of the way by bus, train, car, boat or plane, your DAHON folding bicycle goes with you. Due to its compactness, your DAHON folding bike caneasily be stored indoors, safe against potential theft or vandalism.
HOW EASILY CAN I GET SERVICE FOR MY DAHON FOLDING BIKE?
Except for the frame, fork, and handle post, most parts are standard and can be replaced at any DAHON dealer.
Your place of purchase will generally be your first choice for service, but if you encounter any issues that cannot be resolved, please email service@dahon.com, and we will always be here to assist you further.
