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2025 Rad Power Bikes

RadExpand 5

A 20″ aluminum frame folding e-bike with modest components and mechanical disc brakes.
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Manufacturer Price

$1,599
Weight62.5 lbs  
FrameAluminum
SuspensionRigid
ForkSteel
Wheels20″ Aluminum
Drivetrain1 × 7
GroupsetmicroSHIFT M26
Motor750W hub-drive
Battery672Wh
BrakesMechanical Disc
View on radpowerbikes.comLearn about Rad Power Bikes
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Insights
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

20 mph

RadExpand 5

22 mph

Similar Bikes

Highest gear

(descending)

Sizing
One Size

4'9" – 5'10"

Rider Fit Notes

None yet.

Do you have this bike? Help other riders make a decision about which size will work for them by sharing your own size and fit notes.

Reviews
Electric Bike Report
Rad Power Bikes RadExpand 5 Review | Family Friendly Folder – Electric Bike Report

Jan 2025 · Sam Gross

In the world of electric bikes, specific models often get updated — sometimes yearly — and occasionally, models are sunsetted in favor of something new, better or just more in line with what consumers are asking for. In the case of Rad Power Bikes’ electric folding bike, some combination of all of the above appears

Highs
  • The new handlebar setup is a game changer. The bars are wider, it feels less flexy and it still folds to boot.

  • At over 62 lbs it’s still hefty, but the bike folds down to a convenient size for storing in an RV, a corner of the garage or in the trunk of most sedans.

  • Rad’s rear hub motors have proven time and again to be some of the most reliable on the market.

  • The spec sheet is solid for the price. A 7-speed drivetrain, nice working mechanical disk brakes and a sizeable battery for about $1,599 MSRP is a good deal.

  • The handling is spot-on. Neutral, balanced, predictable — riding this will be intuitive even for e-bike newbies.

  • Rad’s bikes have a distinct power profile that starts gentle and grows stronger as you pick up speed. Never once does it feel like it’ll jump out from under you.

Lows
  • Rad includes a velcro strap to hold the two halves of the bike together when folded, but it’s easily lost. We’d like to see a built-in solution for this issue.

  • I don’t mind the lack of front suspension fork, but some people will not like it. You can really feel some bumps in the road.

Read Review

Electric Bike Review
Rad Power Bikes RadExpand 5 Plus E-Bike Review, 2024

Sep 2024

Price: $2099.00 | Model Year: 2024 | The 720Wh SafeShield battery is a big step up in quality over the 672Wh battery found in the RadExpand 5. It is certified to UL 2271, and features a polymer that encases the cells for even greater safety. This is one of the best batteries on the market from a safety standpoint.

Observations
  • The 720Wh SafeShield battery is a big step up in quality over the 672Wh battery found in the RadExpand 5. It is certified to UL 2271, and features a polymer that encases the cells for even greater safety. This is one of the best batteries on the market from a safety standpoint.

  • The brakes are Gemma hydraulic disc brakes with 180mm rotors, which are a notable improvement over the mechanical disc brakes found on the RadExpand 5.

  • By swapping the cadence sensor for a torque sensor, riders will enjoy immediate power the moment they step on a pedal and they will be able to adjust their speed simply by how hard they pedal.

  • Pedals now fold, saving space for when storing in a small space. See Latest Price

Read Review

Outdoor Gear Lab
Rad Power RadExpand 5

Oct 2022 · Ross Robinson

Looking for a folding e-bike that fits the city streets just as well as it tackles trails on your off-road weekend adventures? The Rad Power RadExpand 5...

Highs
  • Adventure-ready

  • Excellent range

  • Rugged

  • Top-notch control and handling

  • Stable

  • Comes with useful features

Lows
  • Not for tall riders

  • Fairly heavy

  • More involved assembly

  • Mediocre display and controls

Read Review

Geometry
Specs
Build
Frame

Aluminum

Tire Clearance4"

ColorsWhite; Black

Fork

Fixed, Rad custom steel 135 mm hub width, 9 mm quick release, Please note that the Expand 5 may come with a front wheel that features a bolt on axle or quick release

Bottom Bracket

100 mm shell, 164 mm spindle

Headset

Semi-integrated, 1-1/8" straight steerer tube

Stem

45 mm length, + 3º rise.

Handlebar

Alloy, 27" wide

Saddle

Rad Power Bikes with lifting handle

Seatpost

Aluminum alloy, 390 mm x 27.2 mm

TypeRigid

Pedals

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

Grips

Ergonomic rubber comfort grips

Groupset
Rear Derailleur

7-Speed MicroShift RD-M26

Crank

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

Shifters

MicroShift TS71-7, 7-speed thumb shifter

Cassette

7-speed freewheel, 14-32T

Chain

KMC Z7, 124 links

Brakes

Mechanical caliper

TypeMechanical Disc

Brake Levers

Rad Power Bikes approved aluminum alloy levers with motor cutoff switch.

Wheels
Rims

Aluminum alloy, 36 hole, Rim width: 60mm

Spokes

12-gauge stainless steel, black

Tires

CST BFT 20" x 4.0"

Disc Rotors

180 mm

Electric Components
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.

Battery

14Ah 672 Wh external battery, tested by ACT compliant to UL 2271

Display

LED display. See Display section below for details.

Charger

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

Accessories
Lights

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

Fenders

Full coverage front and rear fenders

Racks

Integrated, 55 lb (25kg) carrying capacity

Bell

Yes

Rider Notes
Riders Also Viewed

First added May 14

Last updated October 18

Not listed for 232 days