Base Specs
Electric Bike Specs
Model: RadRunner Max
Year: 2025
Price: $2,299
Weight: 82 lbs
Weight Limit: 275 lbs
Battery Capacity: 672 Wh
Battery Details: Safe Shield Semi-Integrated Battery, Lithium-ion, 48V, 14Ah, UL 2271 certified
Battery Removable: Yes
Motor Watts: 750 W
Motor Torque: 90 Nm
Motor Details: Rad Power Bikes rear hub motor
Top Speed: 28 MPH
Class: Multi-Class (Configurable)
Frame Style: Cargo
Folding: No
Riding Position: Upright
Standover Height: 17 inches
Reach: 13.8 inches
Saddle: Comfort
Pedal Assist Sensors: Torque
Throttle: Half-twist grip throttle
Display: Rad Power Bikes color display, with USB-C port
Lighting: Auto ambient light sensor, 4 lighting modes; Front: 100 lux 450 lumen LED headlight, 130 lux 750 lumen high beam; Rear: Spanning HALO+ with radar and turn signals
Signalling: Rear turn signals, radar detection for approaching vehicles up to 100 meters, rear lights flash alert
Front Suspension: Exsho suspension fork, 80mm travel, tapered, thru-axle
Speeds or Gears: 8
Gearing: 8-speed derailleur, 11-34T cassette
Shifter: Shimano 8-speed trigger shifter
Brakes: Gemma Hydraulic GA-1000B, semi-metallic G3 brake pads, 180mm x 1.8mm 6-bolt rotors
Wheel Diameter: 20 inches
Tire Width: 3.5 inches
Tires: Custom Rad tire 20" x 3.5", puncture protection, reflective stripe, multi-surface tread
Fenders: Full
Cargo Capacity: 120 pounds
Available Frame Sizes: Regular
Advertised Range: 61 Miles
The 2025 Rad Power Bikes RadRunner Max is a Class 1–3 electric cargo utility bike designed for riders who need high payload capacity, extended range, and advanced safety features in a compact, step-through-friendly frame. It targets commuters and utility cyclists who want to carry heavy loads — up to 420 lbs. total payload — while benefiting from features like hydraulic disc brakes, rear radar detection, integrated turn signals, and a torque-sensing pedal assist system. The bike is compatible with an optional Range Extender that can push range beyond 125 miles, and its UL-tested Safe Shield battery reflects Rad Power Bikes' emphasis on electrical safety standards. As the top-tier model in Rad's RadRunner lineup, the RadRunner Max sits above the standard RadRunner and RadRunner Plus in terms of technology and capability.
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