• Speedometer icon to represent the top speed of this electric bike model

    Top speed20 mph

  • Icon to represent the max range of this electric bike model

    Range60+ miles

  • Lightning bolt icon to represent the motor power of the electric bike

    Power750W

  • Icon of a weight to represent the payload capacity of the electric bike

    Payload315 lb

  • Logo communicating that this product is UL certified

    SafetyUL Certified

  • Shield icon to represent the warranty for Rad Power Bikes electric bikes

    Warranty2-year

4.3 (46 reviews)

RadExpand™ 5 Plus Electric Folding Bike

Features front suspension, hydraulic disc brakes, turn signals, and retractable pedals for easier storage. For riders 4'10"-5'10"

$1,899
Ships within 2 business days
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Build difficulty: Easy


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The folding bike. Gone futuristic.

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.

"One of the Best Folding E-Bikes We've Ever Tested."

Micromobility Industries

"Better handling over nearly all other folding ebikes we've tested."

Electric Bike Report
Dive deeper

The future of folding bikes

Right side view of a RadExpand 5 Plus electric folding bike in slate blue
Safety & Quality

Engineered to put safety first

Explore our first-class safety features for all rider types.

A close up image of the UL-Certified SafeShield battery pack on the Stone Tan RadExpand 5.

Raising the bar

All Rad ebikes are either UL Certified or tested by ACT to comply with UL 2849.

This means our bikes and electric systems have undergone rigorous testing to meet safety standards set by UL, a respected third-party organization.

Although U.S. guidelines don’t currently require ebikes to meet UL Certification, we go the extra mile to ensure our riders feel safe in the saddle. UL Certification, we go the extra mile to ensure our riders feel safe in the saddle.

Learn more

Size guide

Tailor-fit comfort. For every rider.

in

30" bike inseam

Slide the scale for your bike inseam measurement

RadExpand 5 Plus

You will be able to pedal and stand over the frame comfortably.

5'4

Katya's measurements: bike inseam 30", height 5'4"

Design driven

Each piece designed for a purpose.

Comfortable & versatile

Effortlessly traverse city streets, rugged trails, and steep hills. The hydraulic front suspension fork smoothes out your ride, while the responsive torque sensor delivers added power when you pedal harder.

Safety. Expanded.

Whether your ebike’s on the road or stowed away, the Safe Shield Battery features anti-thermal technology for extra protection. And for even safer rides, the RadExpand 5 Plus boasts rear-facing turn signals and fast-acting hydraulic disc brakes.

Take it anywhere

The RadExpand 5 Plus conveniently folds-up for easy storage in cramped apartments, RVs, or the trunk of your car. To save you even more space, we’ve equipped it with new collapsible pedals.

A tech-savvy space saver

This is our most advanced folding bike yet. Cover up to 60 miles per charge, track your stats with a full-color display, and charge your phone when you’re on-the-go.

Rad accessories

So many ways to ride Rad.

Image of the RadExpand 5 Plus with a large font-mounted basket, large roll-top liner & Rad Mirror.
Image of the RadExpand 5 Plus in Slate Blue with a rear-mounted pannier bag, handlebar bag & Rad Mirror.
RadExpand 5 Plus in Slate Blue with a water bottle cage & water bottle, Rad Mirror, rear-mounted large basket & rear-mounted Pannier.

Park anywhere

Quick trips just got quicker. Lock it up and go.

Shop Accessories

Apartment-friendly

Save on space with small, compact accessories.

Shop Accessories

Road trip-ready

Small enough for an RV, tough enough to carry gear.

Shop Accessories
Image of a woman riding the RadExpand 5 Plus ebike in Slate Blue. The bike is showing an assortment of accessories including the large basket, large roll-top liner and handlebar bag.
Image of a woman riding the RadExpand 5 Plus ebike in Slate Blue. The bike is showing an assortment of accessories including the large basket, large roll-top liner and handlebar bag.
Image of a woman riding the RadExpand 5 Plus ebike in Slate Blue. The bike is showing an assortment of accessories including the large basket, large roll-top liner and handlebar bag.

Reliable service and support.

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Free, fast shipping

Wait less, ride more. Enjoy fast, free shipping on all ebike orders.

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2-year warranty

Ride in confidence. We’ve got you covered.

Learn more
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Explore our Help Center

Can’t choose a bike? Need to fix a flat? We’re here to help.

Support

RadExpand™ 5 Plus Electric Folding Bike Reviews

Specs & details

Electronics

    Batteries come with a universal key that can be used to lock and unlock the battery to your ebike. Please note that universal keys are not unique to your ebike battery and may work with a variety of locks, including on other Rad ebikes. Universal keys do not offer the highest level of security compared to dedicated or unique key locks. We do not recommend leaving your battery affixed to your ebike in public unattended as it may pose a risk of battery theft.

    Components

      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

      Sizing

      Bike inseam sizing chart(Inches)

      24 - 26"

      26 - 33"

      33+"

      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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