We’ve taken the classic RadExpand folding bike and enhanced it with all-new tech, impressive range, and a collection of features that make it more comfortable, capable, and unique. Tackle tougher terrain with a hydraulic front suspension fork, and enjoy smoother rides wherever you wander with the all-new torque sensor that responds to the way you ride.
Motor: Rear hub 750W, 64 Nm
Range: Estimated 20-60 miles per charge
Rider heights: 4'10"-5'10"
Bike weight: 72.5 lb, 62.5 lb with battery removed
Payload: 315 lb (225 lb. max rider)
Brake Type: Hydraulic
Raising the bar
Both the electrical system and the batteries on this model are UL Certified to UL-2849 and UL-2271.
To set a new standard for ebike safety, the Safe Shield Battery features thermal-resistant technology, which means that each cell is encapsulated by a unique heat-absorbing resin designed to prevent an accident from escalating.
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Battery
15Ah 720 Wh 15Ah Safe Shield Advanced External Battery, Samsung 50GB or LG M50LT cells, UL Certified to UL-2271
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Charger
48VDC, 2 Amp Rad Power Bikes smart charger, operates on 100V-240V AC power outlets
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Class
Class switchable between 1 and 2. Ships in Class 2 status.
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Display
Rad custom color display. See Display section below for details.
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Hub Motor
Rear hub 750W, 64 Nm torque
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.
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Lights
Auto-on feature
Front: ~200 lumens LED headlight with built-in reflector
Rear: Integrated taillight with brake light and turn signals
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Pedal Assist
Torque sensor, 5 PAS Levels, plus a zero assist option
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Range
Estimated 20-60 miles per charge
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Throttle
Half twist throttle
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USB Ports
One USB-C port, located on display
To ensure uninterrupted shipping, some parts may differ from those listed. Rest assured, our engineers rigorously test each component to guarantee quality and compatibility.
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Bell
Yes
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Brake System
Hydraulic Disc, Gemma GA-1000B
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Brake Pads
Gemma Semi-Metallic G2
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Brake Rotors
180mm x 2.3mm
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Crank Set
48T with dual sided chain ring cover, 170mm crank arms
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Derailleur
7 speed Shimano
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Fenders
Full coverage front and rear fenders
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Fork
Exsho STRONG-C hydraulic suspension fork, 50mm travel, bolt-on axle
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Frame
Aluminum
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Freewheel/Cassette
7-speed freewheel, 14-32T
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Gearing
1x7 speed
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Grips
Ergonomic rubber comfort grips
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Handlebar
Aluminum, 680 mm wide
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Kickstand
Side mounted, adjustable angle kickstand
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Pedals
Composite platform, CrMo axle with reflectors, standard 9/16" x 20 TPI threading, folding
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Rear Rack
Integrated, 59 lb (27 kg) carrying capacity
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Saddle
Padded flat touring saddle with shallow anatomic cut-out, wide contoured sides
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Seatpost
390 mm x 27.2 mm
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Seatpost Clamp
31.8 mm
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Shifter
Shimano 7-speed thumb shifter
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Stem
Folding stem raiser with 45mm A-Head stem
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Tires
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.
Geometry
Title |
Text |
Rider Heights |
4'10"-5'10" (147-178 cm) |
Bike Weight |
72.5 lb (32.9 kg), 62.5 lb (28.3 kg) with battery removed |
Payload |
315 lb, 225 lb max rider weight |
Rear Rack Payload |
59 lb (27 kg) |
Folded Dimensions |
29"H x 25"W x 41"L |
Handlebar Height |
43.5" (110.4 cm) |
Reach |
17.9" (455 mm) |
Seat Height |
From ground: 31" - 38" (78.7 - 96.5 cm) From pedal bottom stroke: 26" - 33" (66 - 84 cm) |
Standover Height |
16.5" (41.9 cm) |
Stepover Height |
16" (40.6 cm) |
Total Length |
68" (172.7 cm) |
Wheelbase |
44.5" (113 cm) |
Seat Tube Length |
14.2" (360 mm) |
Sizing
Bike inseam sizing chart(Inches)
You will not be able to ride the bike comfortably.
You will be able to pedal and stand over the frame comfortably.
Your legs may be too long to get full leg extension when pedaling.
What to Measure
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.
How to Measure
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.
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Class level
Choose speed settings for your ride:
Class 1: up to 20 mph, throttle only works while pedaling.
Class 2: up to 20 mph while pedaling or throttling.
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Speedometer
Fast and Curious? The speedometer will tell you your current speed.
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Odometer
Track the distance you’ve racked up, either by trip or through the bike’s entire lifespan.
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Estimated remaining range
Is it time to recharge? To help you keep track, this displays your remaining battery life in either percentage or remaining miles.
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Trip time
Did your trip feel like it was just half an hour, or did time fly by? This display will show you the time you spend on each outing. Be sure to reset your trip odometer before a ride you want to track.
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Pedal assist level
The higher the number, the more the motor will boost you when you pedal. This shows what level you’re on, from 0 to 5.
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Motor watts
Check out how much power the motor is supplying at any given time.
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Headlight, tail light, and rear turn signals
It’s always a bright idea to make sure your lights are on and operating.
Note: Rear turn signals can be manually turned off or will turn off automatically two minutes into use.
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USB charge indicator
Charging your device? This will confirm if your phone (or tablet, or smartwatch, or headphones, or …) is getting the juice it needs.