Rad Wagon 4

Average Score 7.2
Component Quality
  • Reliable smooth maintenance free hub motor
  • Pivot handlebars for those with shorter arms
  • Generous cargo space
  • Shorter battery range than similar cargo bike models
  • Going over bumps can feel unsteady
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Specifications: Rad Wagon 4

Class in the US




Pedal assist

5 level pedal assist


750W Geared Hub


45 Miles

Top Speed

20 Mph


48V 14 Ah

E-bike Weight

76.7 lb


Black, Orange, White


22" x 3"

Frame material


When Rad Bikes first formed in Seattle, their goal was to create affordable and innovative bikes anyone could enjoy. Nowadays, they’ve cornered the  market in creating simple yet easy-to-ride bikes that won’t take your whole paycheck. Designed in Seattle but manufactured in China, every Rad bike is backed by their quality guarantee. Though Rad does offer a full range of electric bikes, including cruisers and fat-tire bikes, today we’ll focus on the popular Rad Wagon 4.

The RadWagon 4 is Rad’s e-cargo offering. It starts at the fair price of just $1,599. That’s a fraction more than a regular old road bike. Since Rad is a direct-to-consumer company, the bike can come right to your door. Why are Rad bikes so affordable? It isn’t’ for lack of power. Instead, Rad has a lower price because rather than using Shimano or Bosch e-assist systems, they utilize Shengyi e-assist systems

The 750W brush less Shengyi continuous drive hub motor offers regenerative restraint and 40 NM of torque. Clearly, Rad hasn’t conciliated on power. In terms of battery, the Rad Wagon 4 incorporates a 48V 2 AMP smart charger that runs on both 110V and 230V power outlets.

One  can easily travel around 25-45 miles on a single battery charge. The Rad Wagon 4 also tops out at round 20 mph in speed, which is about average. Some bike brands, such as the R&M top out at around 28. Not a great difference whatsoever.

What’s rare for a cargo bike is that the RadWagon 4 offers five disparate assist modes. Rather than easily calculating terrain or speed, the motor alternately extends wattage per mode. For example, in eco mode you can get 150 watts of force versus 300 watts in standard. A half twist throttle with on/off button also allows for a bit more control.

Of course, when it comes to a cargo bike, you want to actually be able to do something with your bike itself. A sturdy 6061 aluminum frame and soft Aluminum alloy levers with cutoff switch make for a reliable bike manufactured to tote whatever you have in mind. Tektro 180 mm front and rear brakes suggest that stopping on a dime won’t have you spilling your cargo all over the road. An uncompromising steel fork suspension makes for a pleasant ride no matter where you choose to go.

Overall, the RadWagon 4 is a reliable bike that proves a solid choice for those looking for a bit of cargo capacity in addition to their ride.

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