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Deal.ai › Rad Power Bikes
Rad Power Bikes
Rad Power Bikes RadExpand 5 Folding Fat Tire E-Bike

Rad Power Bikes RadExpand 5 Folding Fat Tire E-Bike

Best price now

$999.00at Fly Rides USAChecked 1 h ago

38% under what the other stores charge

Compared across 8 stores. Prices are checked against each store and labelled with when.

Visit Fly Rides USA

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Price facts

  • Lowest price today: $999.00 at Fly Rides USA (checked Nov 14, 2026).
  • Checked at 8 stores.

Our take on the Rad Power Bikes RadExpand 5 Folding Fat Tire E-Bike

The RadExpand 5 is a folding fat-tire e-bike with a 500W rear hub motor, a 48V 14Ah battery and 20-inch fat tires on a low-step 6061 aluminum frame. It folds to roughly 41 x 25 x 29 inches and weighs about 62.5 lb, so it fits in a trunk or a closet but is heavy to lift. The rigid fork and mechanical disc brakes keep it simple and low-maintenance, while the 7-speed drivetrain handles hills better than single-speed folders. It suits shorter riders and commuters who want one bike for city streets, fire roads and dirt paths, but riders wanting suspension or a light folder should look at pricier folders with front suspension.

Best forCity commuters who fold the bike for storage or transitShorter riders, roughly 4'10" to 5'10"Riders mixing pavement, fire roads and dirt trailsCampers and RV owners wanting a packable fat-tire bike
Pros
  • Folds compactly for cars, closets and small apartments
  • 20-inch fat tires absorb rough pavement and dirt
  • 500W motor and 7-speed gearing climb well
  • Low-step frame is easy to mount and dismount
  • Saddle lifting handle helps when folded
Cons
  • About 62.5 lb, heavy to carry up stairs
  • Rigid fork gives a stiff ride on rough ground
  • Mechanical disc brakes need more lever effort than hydraulic
  • Folding hinge adds a step to every ride and storage

Rad Power Bikes RadExpand 5 Folding Fat Tire E-Bike prices at every store

  • American Iron CyclesNew

    In stock

    $1,599.00Free shippingChecked 1 h ago
    Visit American Iron Cycles
  • San Diego CycleryNew

    In stock

    $1,599.00Free shippingChecked 1 h ago
    Visit San Diego Cyclery
  • Fly Rides USANew

    Availability unknown

    $999.00Checked 1 h ago
    Visit Fly Rides USA
  • Stealth TahoeNew

    Availability unknown

    $999.00Checked 1 h ago
    Visit Stealth Tahoe
  • Tuckahoe Bike ShopNew

    Availability unknown

    $1,599.00Checked 1 h ago
    Visit Tuckahoe Bike Shop
  • Pedal Power Bike ShopNew

    Availability unknown

    $1,599.00Checked 1 h ago
    Visit Pedal Power Bike Shop
  • Bike SultanNew

    Availability unknown

    $1,599.00Checked 1 h ago
    Visit Bike Sultan
  • Seacoast EbikesNew

    Out of stock

    $1,599.99+ $175.00 shippingChecked 1 h ago
    Visit Seacoast Ebikes

Rad Power Bikes RadExpand 5 Folding Fat Tire E-Bike price history

Lowest price we've seen: $999.00 on Nov 14 at Fly Rides USA. Tracked across 8 stores since Nov 14.

What reviewers say

Owners treat the RadExpand 5 as a practical, fun folder for errands and mixed-surface rides. They like the fat tires, the stable ride and the easy step-through frame, and most complaints center on weight and the stiff, unsuspended ride.

What people mention
  • WeightCriticisedOwners say the roughly 62.5 lb bike is awkward to lift into a trunk or up stairs.
  • FoldingPraisedRiders find the fold quick and the folded package small enough for closets and car trunks.
  • Ride comfortMixedThe fat tires smooth out rough pavement, but the rigid fork still feels stiff on bumpy trails.
  • Motor powerPraisedOwners report the 500W motor pulls well on hills and with cargo.
  • BrakesMixedMechanical disc brakes stop reliably but take a firmer squeeze than hydraulic setups.

About the Rad Power Bikes RadExpand 5 Folding Fat Tire E-Bike

The RadExpand 5 is a folding fat tire electric bike with a 500W motor. It has a low-step 6061 aluminum frame with a steel fork and a rigid design. It is made for city commuting and for dirt trails and fire roads.

The frame folds for transport and storage, and a lifting handle is built into the saddle. The display can be adjusted to different angles. A 7-speed rear derailleur and mechanical disc brakes at the front and rear handle gearing and stopping.

Bike type
Folding e-bike
Motor
500W
Battery
48V 14Ah Li-ion
Top speed
20 mph
Gears
7-speed rear derailleur
Brakes
Mechanical disc, front and rear
Frame
6061 aluminum, low-step, folding
Fork
Steel
Suspension
Rigid
Wheel size
20 inches
Front hub
9mm axle with quick-release skewer
Wheelbase
44.5 in
Seat height
24 in (61 cm)
Rider height
4'10" to 5'10"
Weight
62.5 lb (28 kg)
Dimensions

Specifications

Suspension Type
Rigid
Intended Use
Great outdoors, City
Usage Terrain
Road
Wheel Size
20 inches
Wheel Hubs
9mm Axle with Release Skewer Skewer (front)
Range
60+ miles
Maximum Speed
20 mph

Questions and answers

How far can the RadExpand 5 go on a charge?
Rad Power Bikes rates the 48V 14Ah battery at roughly 25 to 45 miles depending on assist level, rider weight and terrain. Heavier use of the throttle and hills push it toward the low end.
Can it fit in a car trunk?
Yes. It folds to about 41 x 25 x 29 inches, which fits most hatchbacks and SUVs with the seats down. At about 62.5 lb, plan on two hands or a helper.
Who does the frame size fit?
Rad Power Bikes lists it for riders about 4'10" to 5'10". Taller riders will feel cramped and should look at Rad's larger frames.
Does it have suspension?
No. The fork is rigid, so the 20-inch fat tires are the only cushioning. Riders on very rough ground may want a suspension fork or a suspension seatpost.
What comes in the box?
The bike ships mostly assembled with the battery, charger, pedals and tools for the remaining setup. Rad recommends a check of the brakes and folding hinge before the first ride.
Is it good for hills?
The 500W motor plus 7-speed gearing handles moderate hills well. Long, steep climbs will still work the rider and drain the battery faster.
Where is the Rad Power Bikes RadExpand 5 Folding Fat Tire E-Bike cheapest?
At Fly Rides USA, for $999.00, 38% under what the other stores charge, as of our latest check.
Where can I buy the Rad Power Bikes RadExpand 5 Folding Fat Tire E-Bike?
8 stores we checked sell it, including Fly Rides USA, Stealth Tahoe, American Iron Cycles, San Diego Cyclery, Tuckahoe Bike Shop.

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68 x 27.2 x 45 in (length x width x height)
Folded size
41 x 25 x 29 in
Terrain
Road, city streets, dirt trails, fire roads
Intended for
Adults; commuting and urban cruising
Riding Style
Urban cruising, All-terrain, Dirt trails, Fire roads
Load Capacity
315 lb
Age Range
Adult
Suitable Terrain
Varied terrain, Bumpier trails, Cityscapes, Dirt trails, Fire roads
Typical Users
Riders 4'10"-5'10"
Department
Unisex Adults
Bike Type
Folding ebike
Design Highlights
Lifting handle (saddle), Adjustable-Angle (display), Folding
Dimensions
41 x 25 x 29 inches (folded)
Frame Material
6061 aluminum
Frame Type
Folding
Frame Fork Material
Steel
Frame Shape
Low-step
Wheelbase
44.5''
Tire Diameter
20 inches
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