EK4

EK4 flexibility for everyday adventure

A folding step-over design with wide 20-inch tires, strong rear-hub assistance and two removable battery choices. Adjustable contact points, front suspension and practical commuter equipment make it a versatile option for daily trips, recreational routes and space-conscious storage.

Power matched to the route

The 750W rear-hub motor reaches 1000W at peak and is paired with a published 82 N·m torque rating. Five assistance levels, a twist throttle and seven mechanical speeds let the rider balance effort, acceleration and energy use across changing terrain.

750W rated, 1000W peak

Brushless rear-hub power supports starts, ordinary climbs and daily transportation. Peak output is a short-duration maximum and should not be confused with the normal operating rating.

Five selectable levels

A speed sensor manages assistance while five settings allow the rider to choose the desired support. Lower assistance generally helps conserve energy on longer routes.

Twist throttle and seven speeds

Twist control provides motor response where local rules allow it. The seven-speed mechanical transmission helps adapt pedaling effort for starts, level streets and inclines.

Choose your battery capacity

Select either a 48V 20.8Ah or 48V 50Ah removable lithium-ion battery. The larger option stores more than twice the nominal energy, but the reference page does not publish a separate verified range, charge time, physical size or operating weight for each selection.

Approximately 998Wh

Calculated from 48V × 20.8Ah. This option provides substantial capacity in the folding platform. The reference page markets up to 80 miles but does not state the exact test conditions.

Approximately 2400Wh

Calculated from 48V × 50Ah. The page offers this option but does not provide its own range or charging specification. Do not assume that distance or charging time scales directly with capacity.

A generic 5–6 hour charge time and 100–240V AC input appear in the detailed table, but charger output and separate charging times for the 20.8Ah and 50Ah selections are not stated. Check the label on the supplied charger and follow the manual delivered with the exact battery selection.

Folding convenience

The central folding frame reduces the stored footprint for garages, apartments and compatible vehicle cargo areas. At roughly 70 lb in the published configuration, safe lifting still requires care and may require two people.

35.4 inches

The published folded length reduces the space needed when the frame and handlebar assembly are secured.

13.7 inches

Its narrow folded profile supports storage in compact spaces after loose accessories are removed or secured.

25.5 inches

Confirm the available cargo opening—not only the interior space—before planning vehicle transport.

After unfolding, fully engage and secure every frame and handlebar latch. Inspect each hinge for correct alignment, debris, wear and movement before every ride. Never operate with a partly closed latch.

Comfort, control and utility

Wide tires, front suspension, adjustable contact points and integrated carrying equipment support everyday comfort without giving up the compact storage advantage.

Suspension front fork

Front suspension helps soften small impacts and vibration from cracked pavement and uneven surfaces.

20 × 3.0-inch tires

Wide-profile tires add cushioning and a substantial contact patch for stable everyday handling.

Adjustable saddle and handlebar

Seat height and 40–45-inch handlebar height support a range of rider proportions and preferences.

180mm mechanical discs

The detailed table specifies mechanical disc brakes with motor-cutoff levers at both wheels.

LED front and brake lights

A front lamp illuminates the route while the integrated rear brake light alerts traffic behind.

Large rear rack

The rear platform accepts properly secured compatible cargo while keeping total load within limits.

Complete technical details

Open each category for the published figures. Contradictory or variant-specific information is marked clearly so an uncertain value is not presented as guaranteed.

The technical table and feature list specify 180mm mechanical discs, while one promotional paragraph mentions an upgrade to hydraulic discs. The page also states both 330 lb and 350 lb capacity. Confirm the delivered configuration before ordering, and use 330 lb as the conservative combined rider-and-cargo limit unless the supplied manual states otherwise.

Included in the box

The reference package list includes the main unit and the setup items shown below.

• 01 EK4 main unit
• 02 Selected battery and charger
• 03 User manual and keys
• 04 Open spanner and hex wrench
• 05 Rear reflector
• 06 Kickstand
• 07 Front-wheel quick release
• 08 LED front light
• 09 Fender set

Prepare every connection

Final assembly and adjustment may be required after delivery. Follow the included manual and use a qualified technician whenever you are uncertain about hinges, brakes, steering or electrical connections.

1. Inspect the delivery. Check the carton and components for damage or missing hardware.
2. Complete assembly. Secure the wheels, handlebar, pedals, saddle, lighting and accessories.
3. Lock every folding latch. Confirm that frame and handlebar hinges are fully engaged.
4. Charge safely. Use only the charger supplied for the selected battery in a dry location.
5. Check critical controls. Verify tires, fasteners, steering, brakes and motor cutoff.
6. Begin at low assistance. Learn acceleration and stopping response in a clear area.

Frequently asked questions

Clear answers to the most important EK4 selection, fit and ownership questions.

Performance and safety notice

Published speed and range are potential figures under selected conditions and are not guaranteed for every rider or route. Weather, hills, surface, tire pressure, riding style, temperature, battery age and combined load can materially change performance.

Laws covering motor output, speed, throttle use, helmets, lighting, age, licensing, registration and permitted riding areas vary. The owner is responsible for confirming and following local requirements.

Wear appropriate protective equipment, inspect the folding latches before every ride and allow additional stopping distance on wet or loose surfaces. Use the conservative 330 lb combined limit until the supplied documentation confirms a different figure for the exact configuration.