RadWagon 4 Electric Cargo Bike

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All-new 22″ x 3″ tires designed in-house by Rad Power Bikes’ team of product engineers and manufactured by VEE Tire Co. provide a lower center of gravity. Features a custom tread pattern that provides a smooth ride over uneven surfaces, withstands bumps, and handles the elements with ease.


Last updated on June 6, 2020 10:31 pm

What is RadWagon 4 about?

By improving on the previous models, Rad power delivered an e-bike with a lower center of gravity to help the rider to move around with a loaded bike. Rad Power designed the RadWagon 4 to combine an efficient motor with a solid frame into an electric cargo bike for the daily chores. The main focus of this model is versatility: it is possible to mount both baskets and child seats on the bike, as well as lateral bags and other tools that fit the long rack.

It is time for superior zero-emission mobility

With fast-growing sustainable transportation, RadWagon 4 offers an eco-sustainable solution with a powerful motor to adapt to hilly and uneven terrain. This e-bike can transport up to 350 lb of total weight by using the 14 Ah Lithium-ion battery to run for 45 miles total. The rack can carry up to 120 lb by itself. Also, a backlit LCD on the handlebar shows a series of functions to keep the residual charge, the speed, and the mileage under control.

Why choose RadWagon 4?

A frequent theme in its design is stability: five pedal assist levels help the rider to tackle any external condition. A twist grip throttle allows for self-propulsion in the early moments of the ride, while a custom tread pattern on the tires guarantees a better grip on any surface. People between 5.1 and 6.4 feet can adjust the telescoping seat post for a more comfortable pedaling and modify the handlebar according to their needs without having to use an additional tool.

Here are the most remarkable features on RadWagon 4:

  • The Rad Battery. For up to 800 charge cycles, the 672 Wh battery capacity uses energy-dense cells that only weigh 7.7 lb. Charging time is up to six hours.
  • A geared hub motor. The planetary gear enables improved torque performance to provide up to 45 miles of movement per charge and five-level pedal assistance.
  • Integrated lights. Front and rear lighting rely on a 200 lumens LED light on the front and smart functionality that activates the rear light whenever the rider uses the brakes.
  • The 13.5 feet frame. The aluminum frame hosts a series of high-quality gear such as a seven-speed Shimano derailleur, full-coverage fenders, pedals with reflectors, and Velo comfort grips.

Specification: RadWagon 4 Electric Cargo Bike


Rad Power Bikes


48V, 14 Ah (672 Wh) with Lithium NMC Samsung 35E cells, rated for 800 charge cycles


48V, 2 Amp Rad Power Bikes smart charger, operates on both 110V and 230V AC power outlets


48V, 750W


Backlit LCD with charge indicator, speedometer, odometer, trip odometer, pedal assist level, wattmeter, and more

Hub Motor

Geared Hub Motor with 5:1 Planetary Reduction


Front: Rad Power Bikes branded standard LED 20 lux (~200 Lumens) Rear: Integrated taillight with brake light indicator functionality

Pedal assist

Intelligent 5 level pedal assist with 12 magnet cadence sensor


25-45+ miles per charge (estimate)


Half twist grip throttle


Water resistant connectors and wiring harness

USB ports

Display: 5V, 1 Amp

Brake Calipers

Tektro Aries (MD-M300)

Brake Levers

Aluminum alloy comfort grip levers with motor cutoff switch

Brake pad material


Brake rotors

Tektro 180 mm front and rear


KMC Z7, 160 Link


46T chainring; ProWheel Solid 170 mm crank length; square-taper J.I.S.; dual-sided chainring guard


7-speed Shimano


Full coverage front and rear fenders with hardware included


Rigid steel fork for 22" wheel


6061 aluminum


DNP 7-speed freewheel, 11-34T


1 x 7-speed


Velo comfort rubber ergo grips


Swept-back, RPB custom


Semi-integrated, 1-1/8" straight steerer tube


Dual leg, spring loaded, steel


Wellgo B087 CrMo axle, forged aluminum platform with reflectors, standard 9/16" x 20 TPI threading


Shinning DB-X50, alloy, double wall, black powder coated, 36 hole


Velo Plush with lifting handle


Satori telescoping seatpost, Telescoping, max length = 440 mm x 34.9 mm

Seatpost clamp

Quick release


Shimano thumb shifter, 7-speed


12 gauge, stainless steel


Satori EZ3 AHS toolless adjustable handlebar stem with built in top cap bolt. Reach, height (stack), and handlebar angle adjustment (80 degrees) with press of a button/lever lift.


Rad Power Bikes, custom 22" x 3" Manufacturer: VEE Tire Co.

Max. Speed

20 mph

Charging time

5-6 Hours

Videos: RadWagon 4 Electric Cargo Bike

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