2020 Rad Power Bikes

RadCity 4

A 26″ aluminum frame commuter e-bike with modest components and mechanical disc brakes.
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MSRP$1,499
Weight64.0 lbs  
FrameAluminum
SuspensionHardtail, 100mm
ForkSuntour
Wheels26″ Aluminum
Drivetrain1 × 7
GroupsetAltus, Tourney
Motor750W 40Nm hub-drive
Battery672Wh
BrakesMechanical Disc
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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)

30 mph

RadCity 4

31 mph

Similar Bikes

Highest gear

(descending)

Reviews
Electric Bike Review
Rad Power Bikes RadCity 4 Review

Jul 2020

Price: $1499.00 | Model Year: 2020 | A feature-complete, comfort oriented, hybrid electric bike with regenerative braking, built-in USB charging port below the display, modular battery pack that works with all other Rad models, and integrated lights. The headlight offers a bright 80 lumen center beam and a unique LED circle to keep you seen, while the rear light offers solid, flashing, and bright mode when the brakes are activated

Observations
  • A feature-complete, comfort oriented, hybrid electric bike with regenerative braking, built-in USB charging port below the display, modular battery pack that works with all other Rad models, and integrated lights. The headlight offers a bright 80 lumen center beam and a unique LED circle to keep you seen, while the rear light offers solid, flashing, and bright mode when the brakes are activated

  • Sturdy adjustable angle stem and long 350mm seat post improves fit for a wide range of rider sizes. The saddle drops down quite far without colliding with the rear rack, the high-step frame is lighter and stiffer than the step-thru, and it offers better weight distribution. An alloy chain guide protects your right pant leg while pedaling and reduces the chance of chain drops

  • High-resolution cadence sensor responds very quickly to pedal movement but the motor ramps up very smoothly, it doesn't feel jerky or unexpected. The bike is extremely quiet and the motor is known for being durable and offering some regeneration as you coast and brake, which saves brake pads and slightly extends range. New twist-throttle hardware looks good, still overrides any level of assist with full power, and is said to be less confusing and more reliable than before. Great fenders, kickstand, pedals, and suspension fork with lockout and preload adjust

  • Only available in one size and one color (consider the RadCity Step-Thru for two colors). The bottle cage bosses are positioned below the downtube, which isn't as easy to reach while riding. The gearless direct drive motor is heavier than the geared motors that Rad uses on their off-road models and doesn't freewheel as efficiently, it suffers from a bit of magnetic drag when pedaling unassisted or past the 20mph top speed

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Bicycling
The Rad Power RadCity Is the Affordable E-Bike That Can Change Your Life

Jun 2019

It arrives fully equipped to commute, haul groceries, and replace your car.

Highs
  • Rack, fenders, and lights are included

  • Upright riding position

  • Hard-to-be-beat price

Lows
  • It's a lot of bike for apartment dwellers to carry up stairs

Read Review

99 Spokes on YouTube99 Spokes on YouTube
Specs
Build
Frame

6061 aluminum

Tire Clearance2.3"

Fork

Suntour spring fork, 100 mm travel, with lockout and preload adjustment

Travel100mm

Spring TypeCoil

Bottom Bracket

68 mmSquare taper bottom bracket

Headset

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

Stem

Zoom, 60º angle adjustment, 100 mm length, 88 mm height adjustment

Handlebar

Custom formed aluminum

Saddle

Velo Plush with lifting handle

Seatpost

Promax, 350 mm x 27.2 mm

TypeRigid

Pedals

Wellgo B087 CrMo axle, forged aluminum platform with reflectors, standard 9/16" x 20 TPI threading

Grips

Velo comfort rubber ergo

Groupset
Rear Derailleur

7-Speed Shimano Altus

Crank

42T, 170 mm ProWheel Pioneer forged alloy, dual-sided aluminum bashguard

Shifters

Shimano SL-TX50-7R thumb shifter, 7-speed

Cassette

DNP 7-speed freewheel, 11-34T

Chain

KMC Z7

Brakes

Tektro Aries (MD-M300)

TypeMechanical Disc

Brake Levers

Aluminum alloy comfort grip levers with motor cutoff switch and integrated bell

Wheels
Rims

Weinmann Goliath, alloy, double wall, 36H

Spokes

12-gauge stainless steel

Tires

Rad Power Bikes by Kenda K-Rad 26" x 2.3", K-Shield puncture-resistant liner

Disc Rotors

Tektro 180 mm front and rear

Electric Components
Motor

750W brushless Shengyi direct drive hub motor with regenerative braking, 40 Nm of torque

Battery

48V, 14 Ah (672 Wh) with Lithium NMC Samsung 35E cells, rated for 800 charge cycles

Display

Backlit LCD with charge indicator, speedometer, odometer, trip odometer, pedal assist level, wattmeter, and more

Charger

48V, 2 Amp Rad Power Bikes smart charger, operates on both 110V and 230V AC power outlets

Accessories
Lights

Front: Standard Rad Power Bikes LED headlightRear: Integrated taillight with brake light

Fenders

Included, black plastic front and rear, full coverage

Racks

Front: OptionalRear: Integrated, 45 lb carrying capacity, 16 mm tubing diameter

Rider Notes
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Last updated July 21
Not listed for 1,361 days