Electronics

  • Battery

    672 Wh

  • Charger

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

  • Controller

    48V, 750W

  • Display

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

  • Hub Motor

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

  • Lights

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

  • Pedal Assist

    Intelligent 5 level pedal assist with 12 magnet cadence sensor

  • Range

    25-45 miles per charge (estimate) RadCity 4 Electric Commuter Bike

  • Throttle

    Half twist throttle

  • Wiring

    Water resistant connectors and wiring harness

  • USB Ports

    Display: 5V, 1 Amp RadCity 4 Electric Commuter Bike

To ensure uninterrupted shipping, some parts may differ from those listed. Rest assured, our engineers rigorously test each component to guarantee quality and compatibility.

Components

  • Brake Calipers

    Tektro Aries (MD-M300)

  • Brake Levers

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

  • Brake Pad Material

    Sintered metal

  • Brake Rotors

    Tektro 180 mm front and rear WHERE CAN I ORDER RadCity 4 Electric Commuter Bike?

  • Chain

    KMC Z7

  • Crank Set

    46T, 170 mm forged alloy, dual-sided aluminum bashguard

  • Derailleur

    7-Speed Shimano Acera

  • Fenders

    Included, black plastic front and rear, full coverage

  • Fork

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

  • Frame

    6061 aluminum

  • Freewheel

    7-speed freewheel, 11-34T

  • Gearing

    1 x 7-speed

  • Grips

    Velo comfort rubber ergo

  • Handlebar

    Custom formed aluminum

  • Headset

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

  • Kickstand

    Heavy-duty aluminum with wide plastic foot

  • Pedals

    forged aluminum platform with reflectors, standard 9/16″ x 20 TPI threading

  • Racks

    Front: Optional
    Rear: Integrated, 60 lb carrying capacity, 16 mm tubing diameter

  • Rims

    Weinmann Goliath, alloy, double wall, 36 hole
    Rim width: 25 mm

  • Saddle

    Plush with lifting handle

  • Seatpost

    350 mm x 27.2 mm

  • Seatpost Clamp

    Quick release

  • Shifter

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

  • Spokes

    12-gauge stainless steel

  • Stem

    Zoom, 60º angle adjustment, 100 mm length, 28 mm spacers mm height adjustment

  • Tires

    Rad Power Bikes by Kenda K-Rad 26″ x 2.3″, K-Shield puncture-resistant liner *tires received may not include branding

To ensure uninterrupted shipping, some parts may differ from those listed. Rest assured, our engineers rigorously test each component to guarantee quality and compatibility. RadCity 4 Electric Commuter Bike

Geometry

Rider Heights 5’7″ – 6’5″ (with approx. inseam between 31″-37″)
Frame Size 18.5″
Handlebar Height 45″
Handlebar Reach 14.5″
Seat Height 28″ – 37″
*Measured from bottom of the pedal stroke
Standover Height 31″
Total Length 70″
Wheelbase 43″
Dropout Width Front: 100 mm
Rear: 135 mm
Bottom Bracket Shell Width 68 mm
Square taper bottom bracket
Seat Tube Length 18.5″
Top Tube Length 23″
Headtube 7″
Chainstay 18″
Handlebar Width 700 mm (27.5″)
Crank Length 170 mm
Seatpost Diameter 27.2 mm
Max Tire Width 2.3″
Bike Weight Total: 64 lb (29 kg)
Battery: 7.7 lb (3.5 kg)
Payload Capacity 275 lb (125 kg)
Rear Rack Capacity 60 lb (27 kg)

Sizing

Bike inseam sizing chart(Inches)

25 – 31″

31 – 37″

37+”

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. RadCity 4 Electric Commuter Bike for sale

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.

Display

  • Battery Life

    A fuel gauge for your electrons.

  • Pedal Assist Level

    The higher the number, the more the motor will boost you when you pedal.

  • USB Charging

    5V, 1 Amp port to charge your phone or portable electronics on the go.

  • Odometer

    Calculate how many miles you didn’t drive this year and how much money you saved on gas.

  • Speedometer

    Can be set to current speed, max speed, or average speed.

  • Wattmeter

    Shows how much power the motor is outputting at any given time.