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ORLMS F4 black 20 inch dual motor electric bike on a white background
Dual Motor 500W x 2
Dual Motor 500W x 2 Dual Motor
20
20" x 4" Fat Tire Tire Size
52V 25Ah Battery
52V 25Ah Battery Battery Capacity
<45°
<45° Climbing Ability
Up to 60-90 km
Up to 60-90 km Pedal-Assist Range
Max 330 lb / 150 kg
Max 330 lb / 150 kg Weight Capacity
ORLMS F4 20" Dual Motor Electric Bike

ORLMS F4 20" Dual Motor Electric Bike

$1,256.00 USD
ColorBlack
ORLMS F4 dual motor electric bike riding on a mountain trail ORLMS F4 black 20 inch dual motor electric bike on a white background

Go farther when the route stops being smooth

F4 brings a compact 20-inch fat-tire format, a 52V 25Ah battery, dual 500W motors, and 7-speed control together for riders who do not want to plan every route around perfect pavement.
ORLMS F4 LCD display and riding-mode controls

Choose the effort that fits the moment

Use pure electric mode when appropriate, pedal assist when you want help without giving up the ride, or pedal normally when you want to take it easy. Three modes make the bike easier to adapt to your route and energy level.

More room between charging stops

With its 52V 25Ah battery, F4 is designed for longer local rides. Expect up to 55-70 km in electric mode or up to 60-90 km with pedal assist in favourable conditions; terrain, temperature, load, wind, and speed affect every ride.
ORLMS F4 electric and pedal-assist range
ORLMS F4 20 by 4 inch all-terrain tires

Keep your ride steadier when the surface changes

The 20 x 4.0 tire format and suspension front fork are there for the moments smooth roads turn into loose gravel, uneven paths, or broken pavement - helping you stay more composed and comfortable.

Power that helps on demanding routes
ORLMS F4 dual motor and 7 speed drivetrain overview

Detailed Feature Introduction

ORLMS F4 dual motor and 7 speed drivetrain overview

More pull when the ride gets demanding

Dual 500W motors give you extra drive when carrying gear, starting on an incline, or keeping momentum on rougher routes - so the ride feels less like a constant compromise.

ORLMS F4 Shimano 7 speed drivetrain

Shift before the hill chooses for you

Shimano 7-speed gearing lets you select a more comfortable pedalling rhythm instead of forcing one cadence across starts, rises, and flatter stretches.

ORLMS F4 lighting and braking components

The essentials stay in view

The F4 configuration combines lighting components with hydraulic disc brakes, helping you focus on what matters on the move: seeing your route and managing speed with confidence.

ORLMS F4 LCD display and riding-mode controls

See the ride information without the guesswork

The color LCD display presents battery status, current speed, assistance level, and trip mileage, so you can make practical decisions before the battery becomes a surprise.

ORLMS F4 hydraulic disc brakes

Brake with more control when the route changes

Hydraulic disc brakes are specified for the F4, giving you a more controlled response when you need to slow down on mixed surfaces or with extra load.

ORLMS F4 compact fat tire bike with stated load capacity

Compact footprint, everyday carrying capacity

The F4 keeps a 20-inch wheel format while listing up to 150 kg / 330 lb total load capacity, giving riders room for themselves and the day’s essentials.

Technical Specifications

Clear details for comparing fit, carrying needs, charging, and ride capability.

Frame6061 aluminum alloy
Front forkSuspension front fork
Battery52V 25Ah lithium battery
Motor52V 500W x 2
DisplayColor LCD landscape display
Maximum speed55 km/h
Speed setting25 km/h
RangeUp to 55–70 km electric mode; up to 60–90 km pedal assist, depending on conditions
BrakesHydraulic disc brakes
Riding modesPure electric / pedal assist / human riding
Tires20 x 4.0
ColorBlack
GearingShimano 7-speed
Climbing ability<45°
Charging time8–9 hours
Maximum load150 kg / 330 lb
Package size152 x 30 x 94 cm
Net weight38 kg
Gross weight48.54 kg

Range varies with rider and cargo weight, terrain, temperature, wind, tire pressure, speed, and assistance mode.

Frequently Asked Questions

F4 is allocated to the Poland warehouse, with 86 units currently recorded for this model. It is intended for Europe-focused fulfilment; a US warehouse variant is not offered for F4.

F4 suits riders who want a compact fat-tire format for mixed daily routes: imperfect pavement, gravel sections, local errands, and longer leisure rides. Its 20 x 4.0 tires, suspension front fork, and 7-speed gearing are designed to make changing surfaces and pace easier to manage.

Plan for up to 55-70 km in electric mode or up to 60-90 km with pedal assist in favourable conditions. Range changes with rider and cargo weight, terrain, temperature, wind, tyre pressure, speed, and the assistance mode you choose.

The supplied specification lists an 8-9 hour charge time for the 52V 25Ah battery. For the best result, charge in a dry, ventilated area and follow the battery and charger instructions in the user manual.

The listed maximum load is 150 kg / 330 lb in total, including the rider and carried items. Stay within that combined limit and secure cargo so it cannot affect handling or braking.

F4 is specified with dual 500W motors and a 55 km/h maximum speed. Rules differ by country and may involve a different vehicle classification, registration, insurance, a licence, or restrictions on where it may be used. Check the rules that apply to your location before purchase and before riding on public roads.

Before your first ride, follow the assembly steps in the F4 manual: secure the handlebar and stem, install the front wheel and fender, connect and secure the motor cable, fit the pedals on the correct sides, and check the brakes, tire pressure, lights, and fasteners. Keep the manual for display settings and routine care guidance.