RadExpand™ 5 Electric Folding Bike

Our rugged fold-and-go model is built for big fun — and small spaces.

Fold in to store. Fold out to explore.
Our fan-favorite folding ebike has fat tires to tackle adventures and a small profile for easy storage. Featuring a step-thru frame, you can customize your ride with adjustable handlebars, seven speeds, and four levels of pedal-assist.

Safety certified

Rad frames are designed to meet international standards, including the guidelines set by the U.S Consumer Product Safety Commission and European Committee for Standardization.

See and be seen.

Safety is paramount to Rad engineers. Reflective striping is incorporated on tire sidewalls, plus LED headlights and taillights come standard on every model.

Precision in practice.

Every eike receives a thorough 50-point inspection before it reaches your door. 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.

Easy to get on & off
As the smallest ebike in our lineup, you can simply step thru and ride. No need to swing your leg over the saddle — or struggle to make it over your gear.

We lightened the load
Our engineers zeroed in on reducing the bike's weight, making it even easier to fold, lift, and store.

Fearlessly fun
Dirt-caked roads, look out. Rugged fat tires help you tackle rough terrain.

An RV-ready ebike
In a tight spot? The RadExpand is a smart fit for RVs, small apartments, or anywhere else you may be short on space.

RadExpand™ 5 Electric Folding Bike Specifications

• Battery

  14Ah 672 Wh external battery
  Bikes shipped to NYC are compliant with UL 2849 and 2271.

• Charger

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

• Display

  LED display. See Display section below for details.

• Hub Motor

  Rear hub 750W
  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.

• Lights

  Auto-on feature
  Front: LED headlight
  Rear: Integrated taillight with brake light

• Pedal Assist

  Pedal cadence sensor, 4 PAS Levels, plus a zero assist option

• Range

  Estimated 25 - 45 miles per charge

• Throttle

  Half twist throttle

• USB Port

  No port

• Bell

  Yes

• Brake System

  Mechanical caliper

• Brake Pads

  Semi-Metallic compound

• Brake Rotors

  180 mm

• Crank Set

  48T with dual-sided chainring guard, 170 mm crank arms

• Derailleur

  7-Speed MicroShift RD-M26

• Fenders

  Full coverage front and rear fenders

• Fork

  Fixed, Rad custom steel 135 mm hub width, 9 mm quick release

• Frame

  Aluminum

• Freewheel/Cassette

  7-speed freewheel, 14-32T

• Gearing

  1x7 speed

• Grips

  Ergonomic rubber comfort grips

• Handlebar

  Alloy, 27" wide

• Kickstand

  Side-mounted, adjustable lean angle

• Pedals

  Composite platform, CrMo axle with reflectors, standard 9/16" x 20 TPI threading

• Rear Rack

  Integrated, 55 lb (25kg) carrying capacity

• Saddle

  Rad Power Bikes with lifting handle

• Seatpost

  Aluminum alloy, 390 mm x 27.2 mm

• Seatpost Clamp

  31.8 mm diameter

• Shifter

  MicroShift TS71-7, 7-speed thumb shifter

• Stem

  45 mm length, + 3º rise.

• Tires

  CST BFT 20" x 4.0"

• To ensure uninterrupted shipping, some parts may differ from those listed. Rest assured, our engineers rigorously test each component to guarantee quality and compatibility.