2025 Rad Power Bikes RadWagon™ 4 Electric Cargo Bike Base

Current Rad Power Bikes Cargo-Utility RadWagon™ 4 Electric Cargo Bike

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Year 2025
Make Rad Power Bikes
Model RadWagon™ 4 Electric Cargo Bike

Shop Rad Power Bikes Pre-Owned

Product Details Specifications Photos

2025 Rad Power Bikes RadWagon™ 4 Electric Cargo Bike

Holds the kiddos. Plus groceries.

This next-level hauler is perfect for taking the kids across town or loading up at the hardware store. The electric cargo bike's elongated frame and lower center of gravity provide stable, reliable rides, even when you’re taking full advantage of the 350 lb. payload capacity. Take a passenger (or two!) for a spin. Our family-friendly accessories get the whole gang outside.

Best Electric Cargo Bike

RadWagon 4 is the best electric cargo bike we've tested.

We go the extra mile.

All Rad ebikes are either UL Certified or tested by ACT to comply with UL 2849.

This means our bikes and electric systems have undergone rigorous testing to meet safety standards set by UL, a respected third-party organization.

Although U.S. guidelines don’t currently require ebikes to meet UL Certification, we go the extra mile to ensure our riders feel safe in the saddle.

See and be seen

Safety is paramount to Rad engineers. Reflective striping is incorporated on tire sidewalls, plus the LED headlight and an integrated taillight with brake-light indicator keep you visible to all.

Precision in practice.

Every ebike, without exception, receives a thorough 50-point inspection. How in-depth is it? Even the screws are double-checked.

Brake confidently in any weather conditions.

Ride rain or shine. Every ebike comes with brakes tested for all-weather stopping ability.

Features may include:

Integrated rear rack

Attach bags, baskets, passenger seats or simply strap on bulky items - the extended size and integrated rack make hauling a cinch.

Geared hub motor

Climb hills and zip across intersections powered by our Rad-engineered 750W motor, designed in-house to help you go steeper at lower speeds.

Telescoping seatpost

Equipped with a telescoping seatpost with a 375 mm maximum length that's capable of accommodating riders between 5'1" - 6'4".

Custom tires

The 22" x 3" tires, designed in-house by Rad engineers, feature a custom tread pattern for smoother riding on uneven surfaces, and an overall size that provides a lower center of gravity.

Dimensions

Dimensions Reach: 21.6" - 25" (550 mm - 635 mm) | Seatpost Diameter: 34.9 mm

Height Handlebar: 43.5" - 47.2 in" | Standover: 23.6" (60 cm) | Stepover: 19.8" (50.3 cm)

Seat Height From ground: 31.5" - 41.3" | From pedal bottom stroke: 27" - 37"

Length Total: 78.7" (2000 mm) | Seat Tube: 13.5" (345 mm) | Seatpost: Telescoping, max length = 375 mm x 34.9 mm

Wheelbase 53.76" (1365.7 mm)

Engine

Throttle Half twist throttle

Motor

Motor Power Rear hub 750W

Motor Type Stated wattage is the manufacturer’s rated power capacity. Actual power-to-ground wattage is under 750W to ensure ebike regulatory compliance and may vary depending on riding conditions.

Battery

Battery 14 Ah 672 Wh external battery, tested by ACT compliant to UL 2271

Charging System 48V, 2 Amp Rad Power Bikes smart charger, operates on 100V-240V AC power outlets

Range

Range, Trail Estimated 25-45+ miles per charge

Drivetrain

Gears 1x7 speed

Gear Shifter Shimano, 7-speed thumb shifter

Chassis

Frame Type Aluminum | Fenders: Full coverage front and rear fenders, plus wheel cover

Fork Rigid steel fork for 22" wheel

Handlebar Grips Ergonomic rubber comfort grips

Handlebars Swept-back, RPB custom

Brakes

Brake System Type Tektro Aries (MD-M300) | Pads: Tektro Metallic | Rotors: Tektro 180 mm

Wheels & Tires

Wheels Freewheel/Cassette: 7-speed freewheel, 11-34T

Tires, Front Specification Rad Power Bikes, custom 22" x 3"

Tires, Rear Specification Rad Power Bikes, custom 22" x 3"

Capacities

Cargo Capacity Rear Rack: Integrated, 120 lb (54.4 kg) carrying capacity

Payload Capacity 350 lb. | Rear Rack: 120 lb.

Weights

Weight Bike: Total: 76.7 lb., 69 lb. with battery removed

Lights and Safety

Lighting Auto-on feature | Front: Rad Power Bikes branded standard LED 80 lux (~200 Lumens) | Rear: Integrated taillight with brake light indicator functionality

Features

Features Class: Class 2 | Display: Backlit LCD. See Display section below for details. | Pedal Assist: Intelligent 5 level pedal assist with 12 magnet cadence sensor | UL Status: Tested by ACT compliant to UL 2849 and UL 2271 | USB Ports: One port | Crank Set: 46T with dual sided chain ring cover, 170 mm crank arms | Derailleur: 7-speed Shimano | Kickstand: Dual leg center stand, spring loaded, steel | Pedals: forged aluminum platform with reflectors, standard 9/16" x 20 TPI threading | Saddle: Plush with lifting handle | Seatpost Clamp: Quick release | 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. | Display: [Battery Life: 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.]