Flash E-Bikes

BLACKFRIDAY!!!!!   Get an 8% discount by using “589SALES” at checkout.

8% OFF In stock

Rad Power – RadWagon 4 Electric Cargo Bike

(40 reviews)


Holds the kiddos. Plus groceries.


This next-level hauler is perfect for taking the kids across town or loading up at the hardware store. The electric cargo bike’s elongated frame and lower center of gravity provide stable, reliable rides, even when you’re taking full advantage of the 350 lb. payload capacity. Take a passenger (or two!) for a spin. Our family-friendly accessories get the whole gang outside.


“Best Electric Cargo Bike”

“RadWagon 4 is the best electric cargo bike we’ve tested.”

Categories: ,



  • Battery

    672 Wh

  • Charger

    48V, 2 Amp Rad Power Bikes smart charger, operates on 100V-240V AC power outlets

  • Controller

    48V, 750W

  • Display

    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. Stated wattage is the manufacturer’s rated power capacity. Actual power-to-ground wattage is under 750W to ensure ebike regulatory compliance and may vary depending on riding conditions.

  • Lights

    Auto-on feature
    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

  • Range

    24-45+ miles per charge (estimate)

  • Throttle

    Half twist grip throttle

  • Wiring

    Water resistant connectors and wiring harness

  • USB Ports

    Display: 5V, 1 Amp

To ensure uninterrupted shipping, some parts may differ from those listed. Rest assured, our engineers rigorously test each component to guarantee quality and compatibility.


  • 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

  • Chain

    KMC Z7

  • Crank Set

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

  • Derailleur

    7-speed Shimano

  • Fenders

    Full coverage front and rear fenders with hardware included

  • Fork

    Rigid steel fork for 22″ wheel

  • Frame

    6061 aluminum

  • Freewheel

    7-speed freewheel, 11-34T

  • Gearing

    1 x 7-speed

  • Grips

    comfort rubber ergo grips

  • Handlebar

    Swept-back, RPB custom

  • Headset

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

  • Kickstand

    Dual leg, spring loaded, steel

  • Pedals

    forged aluminum platform with reflectors, standard 9/16″ x 20 TPI threading

  • Rims

    Shinning DB-X50, alloy, double wall, black powder coated, 36 hole
    Rim width: 45mm

  • Saddle

    Plush with lifting handle

  • Seatpost

    Telescoping, max length = 375 mm x 34.9 mm

  • Seatpost Clamp

    Quick release

  • Shifter

    Shimano thumb shifter, 7-speed

  • Spokes

    12 gauge, stainless steel

  • Stem

    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.

  • Tires

    Rad Power Bikes, custom 22″ x 3″

To ensure uninterrupted shipping, some parts may differ from those listed. Rest assured, our engineers rigorously test each component to guarantee quality and compatibility


Title Text
Rider Heights 5’1″ – 6’4″ (Approx. bike inseam between 24.5″ and 36.25″)
Frame Size 13.5″
Handlebar Height 43.5″ – 47.2 in”
Handlebar Reach 21.6″ – 25″ (550 mm – 635 mm)
Seat Height 27″ – 37″ (690 mm – 940 mm) (adjustable) *Measured from bottom of the pedal stroke
Standover Height 23.6″ (60 cm)
Total Length 78.7″ (2000 mm)
Wheelbase 53.76″ (1365.7 mm)
Dropout Width Front: 135 mm Rear: 175 mm
Bottom Bracket Shell Width 84 mm
Seat Tube Length 13.5″ (345 mm)
Chainstay 29″ (739 mm)
Handlebar Width 27.5″ (700 mm)
Crank Length 170 mm
Seatpost Diameter 34.9 mm
Max Tire Width 4.0″
Bike Weight Total: 76.7 lb (with battery) Battery: 7.7 lb
Payload Capacity 350 lb
Rear Rack Capacity 120 lb
Running Boards Capacity 30 lb per side (optional accessory)

40 reviews for Rad Power – RadWagon 4 Electric Cargo Bike

  1. Wranler Soer

    I love this bike! It is so fun to ride with the kids to school or the park. I worried that it wouldn’t be big enough but my 4 and 6 year old fit comfortably. The bike has plenty of boost for our hilly neighborhood and we haven’t even come close to running out of battery. Highly recommend

  2. Tera Grendal

    Met and exceeded all expectations. It’s easier to ride than we thought. Couldn’t be happier. Makes a simple trip to the store an adventure

  3. Sean L

    Great family bike
    Love it and my kids love riding it too, 1 and 5 years old. Family fun all around

  4. Dani H

    I use our RadWagon for everything with our two small kids (4 and 6). Grocery store runs, park/playground, full loaded beach trips, and school dropoffs

  5. Polina Hander

    We love our RadWagon 4! We use it almost every single day (we haven’t had it through the winter yet.) It is great for getting the kids to and from school and is just a downright fun ride.
    We got the caboose, pegs, deckpads and front basket with pro-build at the local pop-up store.
    Everything has been great so far, including the guys at tRead more about review stating We love our RadWagon 4!he store, who were helpful with the trial ride, sale and build

  6. Emmerald H

    Use it almost everyday for taking my son to school and commuting to work

  7. Sella Stil

    Love it

  8. Anatole Corne

    The bike is amazing, it fits all of our needs, carrying 2 kids on the back it is an ease to ride

  9. Brendan Kolin

    I am enjoying my wagon, it is great the brakes are weak without no upgrades from rad bikes. Something I think that needs some attention, with the weight of the bike and 350 pounds of payload you would have thought that hydraulic brakes would have been the right choice

  10. Eric Jayden

    Great bike,hope you can resolve problem with tire,waiting for info to get back out for a ride

  11. Ardan Guller

    225 miles and loving it. Only complaint is that the display doesn’t quite predict the actual battery charge that well (ie dropped faster from 40% to 0 than from 100% to 60%, leaving my wife stranded with a 60 lb bike on a 95 degree day).

  12. Uriel S

    I am a prior owner of an E-Bike and I have been very impressed with the RadWagon 4 and RadPower product’s

  13. Julius Pyron

    Bike is real tough I recommend only experienced riders due to the weight of the bike , my kids love going on rides here in prague Oklahoma , I need more protection for my babies lol falling is awful

  14. Mr & Mrs Gerna

    Love it and the kids love it

  15. Hogan Werine

    We are utilizing the bike as a rescue/medical tool. We have many trails that ATV’s cannot go on, so we use the bike and a stokes carrier. In addition it takes me 1 minute longer to ride the bike to the station

  16. Anthony M

    Me and the kids love it! Can’t wait to buy another one for my wife

  17. Mike A

    1000 miles today. 28 mile a day commuter, grocery getter, fun toy with the kids, give a friend a ride to lunch. No mechanical or electronic issues to report!

    I can do the commute on one charge, but I take the charger to work so that I can go full speed up the hills.

    The power is plenty! in the top three settings, 20mph comes withRead more about review stating No Regrets Cargo Bike – thank you Rad ! light pedaling. The top level power will go up any hill at 15 mph or so with a full load of groceries or kids, and light pedaling in an easy gear.

    There are certainly more expensive options out there, and maybe they ride a little better, but at 2x-3x the cost, I’m very happy with my purchase

  18. Tony Sladind

    This bike is a game changer for us. It’s our second vehicle

  19. Berno Fillan

    Best bike ever I thing you guys should offer them in the army green color

  20. Arola D

    We love our RadWagon 4! The kids and I easily jump on and go for miles. It was such a great purchase

  21. Stin Feyer

    Great fun for riding around with toddlers
    Ordered online and had a local bike shop put it together. It’s been a great way to get our 2 and 4 year old kids out. It’s lots of fun and easy to ride. I highly recommend it.

  22. ariana wench

    What can I say I just love My radwagon 4, my kids always have fun riding with dad. You can always carry plenty of stuff for a day in the park or beach. I also highly recommend the caboose in case you fall wile riding with your kids gives an extra layer of protection, overall the radwagon 4 is affordable, fun, versatile, easy to ride, customizable Read more about review stating What can I say Iand a great way to haul anything

  23. Bolndy Neil

    Not only can I load this thing down with kids, groceries, camping gear, garbage, and whatever the heck I want, but it also shit-eating-grin FUN to ride – even on hilly Vermont roads! Double thumbs up

  24. Manuel

    My family is loving this ride! We’ve replaced one of our vehicles with this and use it for basic transport to preschool, parks, grocery runs, and for fun trail rides. It’s heavy, but the pedal assist and throttle help get up hills and move after stopping at stop signs and lights. My kids love riding on the back and so do their friends. We added flRead more about review stating Family rideashing lights and mirrors for extra safety. The battery is easy to charge and take on and off. I set it up by myself with the help of the radwagon4 videos online. Awesome bike

  25. Rudolf K

    Overall the bike is awesome! The shipping box was 1st class. Instructions not so great. For example, two washers came in a separate bag and absolutely no Idea what to do with them

  26. Phineas Storm

    I love my 2 RadWagon 4’s…. What I hate are ALL THE THEIFS THAT WANT TO STEAL MY eBIKEs! Everywhere I go there are people trying to STEAL MY eBike! I can’t leave my ebike “unguarded” for more than 20 minutes, it will get stolen

  27. Ken Dirone

    I love my RadWagon! But my kids love it even more. Every day when I get home from work my 3 year old is waiting with his helmet on to go on a ride. I throw him and my 5 year old on the back and we cruise around the neighborhood all the time. Even with two kids on the back, the battery assist is strong when I need it and range is plenty for rides wRead more about review stating My kids wait for me with their helmets onith the kids.

    I had some issues with shipping and a couple pieces that broke in transit but customer service was so great that they cleared those issues up very easily.

    My only tiny “problem” is that the rear brake squeals quite a bit. I’ve tried to adjust it a couple times and sometimes it’s fine for a bit, but then it will start squealing again

  28. Kohln John

    So solid, the grandkids love
    So solid, the grandkids love riding on the back. Very solid and well constructed. Plenty of power and range

  29. Guy Sena

    Love it a lot

  30. Joy Nu

    No problem with the whole process from purchase, delivery, assembly, and bike operation

  31. Reckon Seth

    What a great ebike. Big and beautiful. It seems to just glide down the road. With a 350 pound weight capacity I can carry all the groceries I want or take a friend for a ride. The battery so far just rocks. I went 34 miles on number 3 assist and only dropped 2 bars out of 5 on battery power. I couldn’t be happier with my purchase. Great value

  32. Fandola

    I have a bad hip and this bike has really made it possible for me to have a blast with my kid. We love this bicycle

  33. Lyrine Delph

    The quality of the materials and the construction are better then I could have imagined. The customer service people have been great with all my questions. The staff at the new St. Petersburg location of been awesome as well

  34. Harley Den

    I am so in love with my bike! We are having a great time and enjoying every minute of our experiences on our bikes! well built and very fun! 10 out of 10 highly recommend a Rad bike

  35. Alpha H

    All rad all rad all rad! 🤙 My ladies love it

  36. DL

    Does all I want, just miss the suspension of my previous Rad

  37. Kendall Alan

    It was easy to put together. The videos were easy to follow and understand. I love riding it. I live in a hilly area and the only way I can bike commute with my son is with my rad wagon. It’s easy and makes the hills a breeze

  38. Kaine Lowry

    My grand daughters love this bike. We ride every night and I have to pry them off of it. It is the best investment. This is my 4th RAD bike I own

  39. Puina

    Sold my Jeep Renegade and gave up gasoline. My trips are a little shorter, but at about 60 cents per charge I can afford a rideshare trip for the long ones and still save money

  40. Lyka Spencer

    We love this bike.We can’t stop smiling while on it

Add a review

Your email address will not be published. Required fields are marked *

Select the fields to be shown. Others will be hidden. Drag and drop to rearrange the order.
  • Image
  • SKU
  • Rating
  • Price
  • Stock
  • Availability
  • Add to cart
  • Description
  • Content
  • Weight
  • Dimensions
  • Additional information
Click outside to hide the comparison bar
Shopping cart close