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RadWagon Accessory Bundle
View All RadWagon Accessories ⟶Let Us Do the Heavy Lifting
It’s the strongest and most versatile version of the RadWagon yet, featuring smaller, innovative new tires developed by our in-house team of expert engineers to achieve a lower center of gravity. Its patent-pending new frame design ensures multiple points of adjustability, including a telescopic seat post and easily maneuverable handlebars.
This is a next-level hauler designed for those who are loading up to go somewhere, whether that’s taking the kids on a trip across town or a weekend visit to the hardware store or farmer’s market. With a standover height 2.4 inches lower than its predecessor and a 750W geared hub motor, the RadWagon 4 is in it for the long haul.
Geared Hub Motor
Miles per Charge (estimate)
Lithium-Ion Battery
Payload Capacity
Technical specs
New With RadWagon 4
Smaller, Wider Tires
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.
New With RadWagon 4
750W Geared Hub Motor
Provides twice the torque as the direct drive hub motor found on previous RadWagon models, making uphill hauling and quickly getting up to speed from a stop easier.
New With RadWagon 4
Telescoping Seatpost
Equipped with a telescoping seatpost with a 375 mm maximum length that's capable of accommodating riders between 5'1"-6'4".
New With RadWagon 4
Adjustable Handlebars
An adjustable handlebar stem allows riders to customize the reach, height, and handlebar angle (up to 80 degrees) with zero tools.
7-Speed, 11-34 Tooth Freewheel
A wide range of gearing at your disposal means more torque for steep climbs and maintained pedal authority at top speed.
Reflective Tire Sidewall Striping
Extremely durable and with a larger total reflective surface and better visibility than traditional spoke-mounted reflectors.
Integrated Brake Light
Powered using the main battery pack and featuring brake light functionality that activates any time the brakes are applied.
Integrated Rear Rack
Attach panniers, platforms, or baskets and let the bike carry your cargo -- up to 120 pounds. Or mount a Yepp Maxi child seat, Caboose, or Deckhand to bring up to two kids along for the ride.
Twist Grip Throttle
750W of power on-demand allows you to only use the throttle when you don't want to pedal. Ideal for starting from a stop when your bike's loaded with cargo.
180 mm Mechanical Disc Brakes
Tektro Aries brakes provide you with strong stopping power, even in loose or wet terrain.
48V, 14 Ah (672 Wh) with Lithium NMC Samsung 35E cells, rated for 800 charge cycles
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
Geared Hub Motor with 5:1 Planetary Reduction
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
25-45+ miles per charge (estimate)
Throttle
Half twist grip throttle
Wiring
Water resistant connectors and wiring harness
USB Ports
Display: 5V, 1 Amp
Tektro Aries (MD-M300)
Brake Levers
Aluminum alloy comfort grip levers with motor cutoff switch
Brake Pad Material
Metallic
Brake Rotors
Tektro 180 mm front and rear
Chain
160 Link
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
6061 aluminum
Freewheel
7-speed freewheel, 11-34T
Gearing
1 x 7-speed
Grips
Velo 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
Shinning DB-X50, alloy, double wall, black powder coated, 36 hole
Saddle
Plush with lifting handle
Seatpost
Satori telescoping seatpost, Telescoping, max length = 440 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"
Manufacturer: VEE Tire Co.
5'1" - 6'4"
Frame Size
13.5"
Handlebar Height
43.5" - 47.2"
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)
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)
27.5" (700 mm)
Crank Length
170 mm
Seatpost Diameter
34.9 mm
Max Tire Width
3.0"
Bike Weight
76.7 lb (34.8 kg)
Payload Capacity
350 lb (158 kg)
Rear Rack Capacity
120 lb (54 kg)
Running Boards Capacity
30 lb per side (optional accessory)
What to Measure
Your “real inseam” -- or inside leg length -- is the distance between your body where it sits on your bike saddle and the ground.
This will typically be an inch or two longer than the length of your trousers, but you’ll want to measure to be sure.
You’ll use this number on the chart to get a feel for how the different models will fit you.
How to Measure
Gather the tools needed:
- Medium-width hardcover book
- Tape measure
- A wall you can stand against
- A trusted friend or relative
Wearing your regular riding shoes and with your back to the wall, stand with your feet spread so there is about 7 inches between them - this is about the distance apart your feet would be when straddling a bike with your feet on the ground (standover height).
Place a hardcover book against the wall with the spine of the book facing upward. Slide the book upwards towards your groin until it is solidly against your body. This may be a bit awkward, but is way more comfortable -- and safer! -- than trying to ride a bike that is too big.
If you have a buddy helping you, get them to measure from the floor to the top of the book spine while you hold the book in place. If you’re going it alone, carefully hold the book in place and measure from the ground to the top of the book spine.
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A fuel gauge for your electrons.
Pedal Assist Level
The higher the number, the more the motor will boost you when you pedal.
USB Charging
5V, 1 Amp port to charge your phone or portable electronics on the go.
Calculate how many miles you didn't drive this year and how much money you saved on gas.
Speedometer
Can be set to current speed, max speed, or average speed.
Wattmeter
Shows how much power the motor is outputting at any given time.
The Rad Battery Pack
With over a decade of designing and building ebikes under our belts, we know that a high-capacity battery like this isn’t something you cheap out on. We designed and built our batteries using genuine Samsung 35E cells, which are some of the most energy-dense and reliable lithium-ion cells on the market today. These cells have allowed us to build an overall better battery, and at only 7.7 lb, it's one of the lightest and most energy-dense packs on any electric bike.
Miles per Charge
To Fully Charge
Total Battery Capacity
Powerful, Effective Geared Hub Motor
For the first time ever, the RadWagon now features a geared hub motor, which provides twice the torque compared to the direct drive motor used in previous models. This motor, which can be found on several of our off-road and utility-oriented models, offers improved uphill hauling and helps riders quickly get up to speed from a stop. Whatever your ride calls for, you can complete your mission in confidence — even with up to 350 lb of cargo.
Motor Power
Max Motor Torque
Winner, Best Electric Cargo Bike of 2021
"[The RadWagon 4] is much less expensive than almost all competitors… and it’s actually better than some of the more expensive ones."
- ElectricBikeReview.com
