The RadWagon 4 is Rad Power Bikes flagship electric cargo bike -- fully redesigned from the ground-up for a more confident riding experience.
We took accessibility seriously on this project and improved the biomechanical fit for a wider range of users. The whole bike is lower to the ground, which improves stability and adds safety. The patented new frame design is stiffer, steadier, and, ultimately, better looking. The bike also features easily adjustable touchpoints designed to quickly modify seat height and handlebar reach without the use of tools.
It's a revolutionary micro-mobility option designed to replace the family minivan. Accessible, robust, and capable of hauling up to 350 lbs of cargo, this bike has inspired more people to get out of their cars and engage with their communities, a development that aligns with our company's overall mission.
The RadWagon 4 was an ambitious project on many fronts, requiring a number of groundbreaking decisions and innovations to arrive at the final design.
To lower ride height and improve stability, we knew we wanted a smaller, wider wheel than what was traditionally specified on cargo bikes. A 22" rim would be perfect, but nobody made a plus-size tire in the old BMX standard. If we wanted a 22"x3" wheel, we would need to tool up new tires and tubes while creating enough service supply.
So we broke the rules and did just that.
Our first test riders told us we had something unique. The new wheel size brought the stand-over height and deck-height much lower, fitting a wider range of riders and greatly increasing stability. By virtue of being smaller, these wheels deliver more torque to the ground, and the plus-size width helps soak up the bumps in the road.
The frame is long and stretched-out -- typical of a longtail cargo bike. While these types of frames tend to feel wobbly, we wanted all riders to feel stable and confident on this bike. We added sweeping reinforcements that connected the rear-rack to the front half of the bike. The result was an 18% stiffer frame, producing a more confident and stable ride feel.
Our primary takeaway? Breaking with convention to improve the experience was a huge win.