Our latest folding ebike has fatter tires to tackle adventures of all sorts. Featuring a step-through frame, and allows you to customize your ride with adjustable handlebars, seven speeds, and four levels of pedal-assist.
Size guide
Slide the scale for your bike inseam measurement
Katya's measurements: bike inseam 30"/ 76cm, height 5'4'/ 163cm
Ride comfortably. Perfectly tailor the ebike to you with an adjustable riser bar that you can move out or in.
Our engineers zeroed in on reducing the bike's weight, making it even easier to fold, lift, and store.
Dirt-caked roads, look out. Rugged fat tires help you tackle rough terrain.
In a tight spot? The RadExpand is a smart fit for RVs, small apartments, or anywhere else you may be short on space.
Explore our first-class safety features for all rider types.
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.
672 Wh
48V, 2 Amp Rad Power Bikes smart charger, operates on 100V-240V AC power outlets
Rad Power Bikes controller, 48V, 750W
Rad Power Bikes custom LED display with Charge indicator, pedal assist level / error display, headlight/taillight indicator and more
750W brushless geared hub motor, 5:1 planetary gear reduction. 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.
Front: Rad Power Bikes branded standard LED
Rear: Integrated taillight with brake light indicator functionality
Low-Profile Cadence Sensing Pedal Assist, Half-Grip Twist Throttle
25 - 45 miles per charge (estimate)
Half twist grip throttle
Water resistant connectors and wiring harness
To ensure uninterrupted shipping, some parts may differ from those listed. Rest assured, our engineers rigorously test each component to guarantee quality and compatibility.
Mechanical caliper
Rad Power Bikes approved aluminum alloy levers with motor cutoff switch.
Semi-Metallic compound
180 mm front and rear
KMC Z7, 124 links
48T, 170 mm forged alloy, dual-sided chainring guard
7-Speed MicroShift RD-M26
Full coverage front and rear fenders with hardware included
Rad custom steel 135 mm hub width, 9 mm quick release
6061 aluminum
7-speed freewheel 14-32T
1 x 7-speed
Ergonomically designed, made of soft yet durable rubber
Alloy, 27" wide, 6.9" rise
Semi-integrated, 1-1/8" straight steerer tube
Side-mounted, adjustable lean angle
Composite platform, CrMo axle with reflectors, standard 9/16" x 20 TPI threading
Front: Optional, 30 lb (14kg) carrying capacity
Rear: Integrated, 55 lb (25kg) carrying capacity
Aluminum alloy, 36 hole
Rim width: 60 mm
Rad Power Bikes with lifting handle
Aluminum alloy, 390 mm x 27.2 mm
31.8 mm diameter
MicroShift TS71-7 -R under bar thumb shifter, 7-speed
12-gauge stainless steel, black
45 mm length, + 3º rise.
CST BFT 20" x 4.0", e-bike rated with puncture-resistant liner and reflective strip
To ensure uninterrupted shipping, some parts may differ from those listed. Rest assured, our engineers rigorously test each component to guarantee quality and compatibility.
| Title | Text |
|---|---|
| Rider Heights |
4'10" - 5'10" (Approx. bike inseam between 24.5" - 32.25") |
| Frame Size | 16" |
| Handlebar Height | 45-48" |
| Handlebar Reach | 16" |
| Seat Height |
24" - 31" Measured from bottom of the pedal stroke |
| Standover Height | 16" |
| Total Length | 68" |
| Wheelbase | 45" |
| Dropout Width | 175 mm rear dropout width, 12 mm axle diameter, 10 mm flats |
| Bottom Bracket Shell Width | 100 mm shell, 164 mm spindle |
| Seat Tube Length | 16" |
| Effective Top Tube | 23.5" |
| Chainstay | 18" |
| Handlebar Width | 690 mm (27.2") |
| Crank Length | 170 mm |
| Seatpost Diameter | 27.2 mm |
| Max Tire Width | 4" |
| Bike Weight |
Total: 62.5 lb Battery: 7.7 lb |
| Payload Capacity | 275 lb |
| Rear Rack Capacity | 59 lb (26.8 kg) |
| Folded Dimensions | 29H x 25W x 41L" |
Your “bike inseam” — or inside leg length — is the distance between your body where it sits on your bike saddle and the ground.
It’s typically an inch or two longer than the length of your trousers, but measure to be sure.
You’ll use this number on the chart to get a feel for how the different models will fit you.
Gather the tools needed:
Medium-width hardcover book
Tape measure
A wall you can stand against
A trusted friend or relative
Wearing your regular riding shoes and with your back to the wall, stand with your feet spread so there is about 7 inches between them - this is about the distance apart your feet would be when straddling a bike with your feet on the ground (standover height).
Place a hardcover book against the wall with the spine of the book facing upward. Slide the book upwards towards your groin until it is solidly against your body. This may be a bit awkward, but is way more comfortable — and safer! — than trying to ride a bike that is too big.
If you have a buddy helping you, get them to measure from the floor to the top of the book spine while you hold the book in place. If you’re going it alone, carefully hold the book in place and measure from the ground to the top of the book spine.
.png?v=0&options=w_200)
LED panel that includes pedal assist controls and battery charge levels.
Skip to content
