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Cargo & Utility

Rad Power Bikes RadWagon 4

★★★★☆ 4.4/5 · 993 reviewsby by Rad Power Bikes
8.8OUT OF 10
The SpokeVolt verdict

The RadWagon 4 is a practical, budget-friendly cargo ebike that excels at hauling kids, groceries, or gear around town. Its powerful motor and long rear deck make it a versatile family workhorse, though its weight and size mean it's best suited for riders with adequate storage space.

Key Features

Full Specifications

Motor750W geared hub, 80 Nm torque
Battery672Wh removable lithium-ion
Top Speed20 mph (Class 2)
Payload Capacity350 lbs total (bike + rider + cargo)
Weight71 lbs

What we liked

  • High cargo capacity for kids or gear
  • Low step-through frame for easy mounting
  • Long extended range on a single charge
  • Comfortable upright riding position
  • Wide accessory ecosystem for customization
  • Affordable compared to other cargo ebikes

Worth noting

  • Heavy overall weight makes transport difficult
  • Bulky size hard to store in small spaces
  • Basic mechanical brakes instead of hydraulic
  • Limited gearing for very steep hills
  • Stock seat can feel uncomfortable long-term

The Full Review

The Rad Power Bikes RadWagon 4 is a purpose-built electric cargo bike designed to replace car trips with something more affordable, sustainable, and honestly more fun. Anchored by a 750-watt geared hub motor and a 48-volt battery, it delivers the kind of torque needed to haul groceries, kids, pets, or gear without breaking a sweat, even when climbing moderate hills. The extended rear rack is the heart of this bike's identity, offering a long, low platform rated to carry up to 120 pounds on its own, with the bike's total payload capacity reaching an impressive 350 pounds when you factor in rider weight and additional cargo. This makes the RadWagon 4 a genuine car-replacement vehicle for errands, school runs, or hauling supplies around town. Ride comfort and control were clearly priorities in the RadWagon 4's design. The step-through frame makes mounting and dismounting easy regardless of what you're carrying, while the low center of gravity, achieved through thoughtful battery placement, keeps the bike stable even when the rear rack is loaded down with panniers, a child seat, or stacked bins.

Hydraulic disc brakes provide confident stopping power appropriate for a bike that can weigh significantly more than a standard commuter once loaded, and the front and rear fenders paired with an integrated rear rack help keep riders clean and cargo secure in varied weather. A color LCD display lets riders monitor speed, battery life, and pedal-assist level at a glance, while the throttle mode offers on-demand power for stop-and-go city riding or quick starts from intersections. Practicality extends into the smaller details that make daily use seamless. Integrated front and rear lights improve visibility for early morning or evening rides, and the five levels of pedal assist let riders dial in exactly how much help they want, whether they're aiming for exercise or pure convenience. The RadWagon 4 supports a wide range of accessories, including passenger kits, cargo bags, and child seats, allowing owners to customize the bike for family use, small business deliveries, or grocery runs. With a range of up to 45 miles per charge depending on conditions, and a sturdy build designed for real-world hauling, the RadWagon 4 stands out in the cargo ebike category as a dependable, versatile workhorse for anyone looking to carry more while relying less on a car.

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