

As the kids grow up, the RadWagon can be fitted with two rear seat pads and the newly redesigned Caboose to give them some support. Installing Rad Power Bikes’ kid carrying accessories, the rear of the bike can transform into the bicycling equivalent of a station wagon, with room for 2 infant car seats like the Thule Yepp Maxi child seat for bikes that clip directly into the RadWagon’s rear rack. That’s enough for an adult and two small children, two adults, or one adult and a ton of cargo. Like its predecessors, the new RadWagon has a carrying capacity of 350 pounds. The RadWagon 4 is purpose-built for carrying a ton of people and gear around. I usually opt for the workout, but it’s nice to know the new motor is up to the task if I’m not. The new motor doesn’t bat an eye when faced with the hill and is able to support me moving up the hill directly, without the need to weave side to side or get unnecessarily winded. The last few hundred meters of my commute home includes an elevation gain of 100 meters that really puts ebikes to the test. The new motor significantly improves the ease of getting up to speed from a stop and is a joy to ride with. When riding with my two boys on the back of the old RadWagon, I made a habit of using the throttle to get the bike moving as I gained my balance. The new motor packs a nice punch that improves on one of the biggest challenges of riding a fully loaded cargo bike, and that is getting started from a dead stop.

The new motor isn’t as quiet as the Shengyi, but it isn’t something that lingers as you twist the throttle off the line and blast off. Zipping out of the driveway on the new RadWagon 4, I immediately forgot about the Shengyi. The larger diameter of the Shengyi motor translated to a quieter operation and boasted regeneration that helped slow the bike and recharge the battery at up to 284 watts when stopping.

I have to say that when I first realized Rad Power Bikes was swapping out the 750-watt Shengyi motor in the previous RadWagon for a new motor, I was a bit bummed. One of the most exciting upgrades arriving with the new RadWagon 4 is a new 750-watt geared hub motor that boasts twice the torque off the line versus its direct drive predecessor. The lower center of gravity makes carrying weight on the bike that much easier, as it’s no longer necessary to muscle the bike around when carrying heavier loads. Either of us can ride with the kids without having to buy a different bike, change seats, or get out any tools. The result of the lower standover height, easily adjustable stem height, and telescoping seat post is a bike that can support both my wife and I. To lock the stem in place, simply push the lever back down until the button pops back out and everything is tight. The handlebars can be adjusted to the right height in a matter of seconds. A quick push of the locking button on the side of the stem followed by a quick tug up on the lever atop the stem and tension is released. Up front, Rad Power Bikes upgraded the stem on the RadWagon 4 to a quick adjust stem, making it easy to raise or lower the stem or adjust the angle of the handlebars with just the push of a button.
