What Makes the Rad Wagon™ 5 Electric Cargo Bike Better Than RadWagon 4?
A New Era of the Rad Wagon™ 5
The Rad Wagon™ 5 Electric Cargo Bike delivers confidence, comfort, and serious cargo capability in one refined package. This upgraded Electric Cargo Bike replaces the older RadWagon 4 with smarter design and improved handling.
Wheel and Handling Improvements
The Rad Wagon™ 5 Electric Cargo Bike features 20-inch wheels instead of the 22-inch wheels found on the RadWagon 4. Because 20-inch tires are more common today, riders can easily find aftermarket replacements. Additionally, the smaller wheels improve stability and balance when carrying heavy cargo.
Frame, Fit, and Comfort
The Rad Wagon™ 5 uses a condensed frame that enhances maneuverability in tight spaces. This Electric Cargo Bike fits riders from 4’11” to 6’3″, making it ideal for families. As a result, more riders can enjoy better comfort and confident handling.
Battery and Safety Upgrades
The Rad Wagon™ 5 Electric Cargo Bike supports advanced battery options like the 15Ah 720Wh Safe Shield Advanced External Battery. This UL-certified battery uses Samsung or LG cells for reliable performance and longer range. However, always remove the battery when parking because universal keys work across multiple Rad models.
Battery
Built for riders who demand consistent power, the 15Ah 720Wh battery features Safe Shield technology for advanced thermal management and impact protection. With UL 2271 certification, you can ride confidently knowing your battery meets the highest global safety standards.
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Capacity: 15Ah / 720Wh
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Cell Type: Samsung 50GB or LG M50LT
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Certification: UL 2271 compliant
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Locking System: Universal key lock and unlock mechanism (not unique across models)
Note: Universal keys are compatible with multiple Rad models and do not provide unique locking security. Always remove your battery when leaving your bike unattended.
Charger
The 48VDC, 2 Amp Rad Power Bikes smart charger ensures fast and efficient charging on the go. It operates on 100V–240V AC outlets, perfect for international or domestic use.
Motor
A powerful 750W rear hub motor delivers up to 90 Nm of torque for smooth acceleration and excellent hill-climbing capability. Rated under 750W to maintain compliance with ebike regulations, the motor adjusts dynamically based on terrain and riding style.
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Type: Rear hub motor
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Power: 750W
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Torque: 90 Nm
Pedal Assist & Throttle
Experience complete control with 5 levels of torque-sensing pedal assist, plus a zero-assist option for manual riding. The half-twist grip throttle provides instant power when you need an extra boost.
Range
Ride farther with an estimated 20–60 miles per charge, depending on terrain, rider weight, and assist level.
Display
Stay informed with the Rad custom color display, designed for clarity and real-time performance monitoring. Includes a USB-C port for convenient device charging while on the road.
Lights
Ride safely day or night with an auto-on lighting system.
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Front Light: 450 lumens LED headlight with built-in reflector
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Rear Light: Integrated taillight with brake light and turn signals
Brake System
Reliable braking is handled by Tektro Hydraulic Disc HD-E395 brakes with 180 mm rotors and semi-metallic pads, ensuring precision control and powerful stopping in any conditions.
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Brake Type: Hydraulic Disc
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Rotors: 180 mm x 2.3 mm
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Pads: Tektro E11.11 Semi-Metallic
Frame & Components
Every component is engineered for durability, comfort, and control:
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Frame: Lightweight aluminum construction
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Fork: RST Guide suspension fork, 45 mm travel
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Crank Set: 50T with dual-sided chainring cover, 170 mm crank arms
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Derailleur: 7-Speed Shimano
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Gearing: 1×7 speed system
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Pedals: Composite platform, CrMo axle with reflectors
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Grips: Ergonomic rubber comfort design
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Handlebar: 680 mm aluminum
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Kickstand: Dual-leg, spring-loaded steel
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Saddle: Padded touring seat with shallow anatomic cut-out
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Seatpost: Telescoping 552 mm x 34.9 mm
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Rear Rack: Integrated, supports up to 120 lb (54.4 kg)
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Tires: Kenda 20″ x 3.3″
Geometry & Fit
Designed to fit a wide range of riders, from 4’11” to 6’3″ (150–190 cm).
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Bike Weight: 86 lb (39 kg), 75.6 lb (34.3 kg) without battery
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Payload Capacity: 375 lb total / 265 lb max rider
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Rear Rack Payload: 120 lb (54.4 kg)
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Handlebar Height: 44″ (111.8 cm)
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Seat Height: 30.5″–41.8″ (77.5–106.1 cm)
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Standover Height: 21″ (53.3 cm)
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Wheelbase: 50.7″ (128.8 cm)
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Total Length: 76″ (193 cm)
Sizing Guide
Proper fit is essential for comfort and performance. Measure your bike inseam (distance from the ground to the top of your inner thigh while standing).
Inseam Fit Chart:
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23–25″ – Not recommended for comfortable riding
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25–37″ – Ideal fit for pedaling and standing over the frame
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37+” – May limit full leg extension
How to Measure:
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Stand against a wall wearing your usual riding shoes.
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Place a hardcover book between your legs, spine upward.
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Raise it snugly to your groin.
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Measure from the ground to the top of the book spine.
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