RadCity Step Thru
Buy Now - $1,499

RadCity Step-Thru 3

Electric Commuter Bike


Shipping: Free to the lower 48 states

$200 off your purchase when you buy any 2 ebikes with code 2xEbikeCombo

Winner, Best City Electric Bike & Best Affordable Electric Bike of 2020
Ebikes from Rad Power Bikes were named the Best Electric Bikes in 7 categories by ElectricBikeReview.com, the most of any electric bike company.

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Hear from Real Rad Owners

"Shocked by the level of quality for the price. It’s amazing."
- Jeremy S.
"It's the best purchase I've made in years! Great customer service also!"
- Stephen S.
"This is an awesome bike. Has lots of power and handles wonderfully."
- Joanna P.

Most popular accessories

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The Easy Access Comfort Crusier

The latest iteration of our sleek step-thru commuter bike comes with mounts on its frame for an optional wheel lock, a feature that makes the RadCity Step-Thru 3 even better for running quick errands than any previous model.

The RadCity Step-Thru 3 features a low-step frame design and less distance between you and the handlebars. With all the benefits of the RadCity, in a more approachable package, this is the true comfort cruiser you've been searching for.

Technical specs

48V, 14 Ah (672 Wh) with Lithium NCA 18650 Samsung 35E cells, rated for 800 charge cycles

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

48V, 750W

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

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

Half twist throttle

Water resistant connectors and wiring harness

USB Ports
Display: 5V, 1 Amp

Bike 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


Crank Set
46T, 170 mm ProWheel Pioneer forged alloy, dual-sided aluminum bashguard

7-Speed Shimano Altus

Included, black plastic front and rear, full coverage

Suntour spring fork with lockout and preload adjustment, 80 mm travel, 100 mm hub width, 9 mm quick release

6061 aluminum

DNP 7-speed freewheel, 11-34T

1 x 7-speed

Durable Imitation Leather Ergonomic Grips

Custom formed aluminum

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

Heavy-duty aluminum with wide plastic foot

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

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

Weinmann Goliath, alloy, double wall, 36H

Velo Plush with lifting handle

Promax, 340 mm x 27.2 mm

Seatpost Clamp
Quick release

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

12-gauge stainless steel

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

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

Recommended Rider Heights
4'10" - 6'

Frame Size

Handlebar Height
42-45" (adjustable)

Handlebar Reach

Seat Height
24.5" - 33"
*Measured from bottom of the pedal stroke

Standover Height

Total Length


Dropout Width
Front: 100 mm
Rear: 135 mm

Bottom Bracket Shell Width
68 mm
Square taper bottom bracket

Seat Tube Length

Top Tube Length (effective)



Handlebar Width
600 mm (24")

Crank Length
170 mm

Seatpost Diameter
27.2 mm

Max Tire Width

Bike Weight
65 lb

Payload Capacity
275 lb

Rear Rack Capacity
45 lb


What to Measure

Your “real inseam” -- or inside leg length -- is the distance between your body where it sits on your bike saddle and the ground.

This will typically be an inch or two longer than the length of your trousers, but you’ll want to 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:

  1. Medium-width hardcover book
  2. Tape measure
  3. A wall you can stand against
  4. 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.

Key Features

7-Speed, 11-34 Tooth Freewheel
A wider range of gearing at your disposal means more torque for treacherous uphill climbs and maintain pedal authority at top speed.

Reflective Sidewall Striping
Extremely durable and have a larger total reflective surface and better visibility than traditional spoke mounted reflectors.

Integrated Brake Light
Powered using the main battery pack and features brake light functionality that is activated any time the brakes are applied.

Low-Step Frame Design
Featuring a 17" stand over height, this bike is perfect for those needing a more approachable package without sacrificing features or functionality.

750W Shengyi Direct Drive Hub Motor
The direct drive hub motor provides smooth acceleration and features regenerative braking to help recharge the battery any time you engage the brake levers.

Integrated Rear Rack
Attach panniers, platforms, or baskets and let the bike carry your cargo. Or mount a Yepp Maxi child seat and bring your kids along for the ride.

Twist Grip Throttle
750W of power on-demand.

Display Technology
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.

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

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

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

The Rad Battery Pack

With over a decade of designing and building ebikes under our belts, we know that a high-capacity battery like this isn’t something you cheap out on. We designed and built our batteries using genuine Samsung 35E cells, which are some of the most energy-dense and reliable lithium-ion cells on the market today. These cells have allowed us to build an overall better battery, and at only 7.7 lb, it's one of the lightest and most energy-dense packs on any electric bike.

Miles per Charge
5-6 Hours
To Fully Charge
672 Wh
Total Battery Capacity

Reliable, Smooth, Maintenance-Free Hub Motor

Using a brushless direct drive hub motor allows regenerative braking to be enabled as a standard feature. This allows the user to slow down when traveling downhill or coming to a stop while charging the battery in the process. Regenerative braking is automatically activated anytime you engage the brake levers, meaning you can take advantage of this amazing feature without having to do anything extra.

Motor Power
40 Nm
Max Motor Torque
Our RadCity community is rad. And massive.
@radpowerbikes #radcity #riderad

Winner, Best City Electric Bike & Best Affordable Electric Bike of 2020

"People who might have known about ebikes but struggled to find one that was approachable and well balanced now have a great option."
- ElectricBikeReview.com

Watch the Review

Looking for something more traditional?

The RadCity 4 is a great option if you want many of the same features as the RadCity Step-Thru but in a more traditional, familiar frame style.

Explore RadCity

Customer Reviews

Based on 480 reviews
Excellent Bike!

I absolutely love my Rad City Step-Thru Bike! My partner had purchased the 2019 model in December 2019 and brought it to Florida. I then thought I'd like the same bike and purchased the 2020 Version 3. I am so glad I did. The bike fits me so well!

Best Purchase EVER!!

I really love my RadCity. I just hit 400 miles today and rarely find the need to get in my car. Quick errands deserve putting this "rad" bike into action. I have had no problems other than two flat tires from those nasty goat heads. Thankfully it happened on the front tire so changing was easy. I thoroughly enjoy my rides and go frequently. I can climb all hills with relative ease. My longest ride has been 35 miles and had plenty of battery left. They are easy to put together. I did buy a more comfy seat. Initial rides require practice and they are heavy so one has to be careful when dismounting. Love the throttle when starting up at a light and through an intersection. I am completely comfortable on this bike now. It took me about 2 weeks of rides to become familiar with the throttle, the gearing, and the pedal assist modes. I also needed a little time to manage the weight of this bike ( I was used to my light road bike). YOU WILL LOVE THIS BIKE! I PROMISE!!!


My wife has a bad knee and has not biked with me for some years now we go a few miles everyday we can thanks to our rad bikes

Awesome Bikes!

We ordered two Rad Bikes/StepThru and we love them.
Great quality and a whole lot of fun!

Wife's bike

We have had a few good rideds so far but it's still cold and rainy in Michigan. Lot's of fun though.

RadCity Step-Thru Electric Commuter Bike Version 3

We purchased a couple RadCity Step-Thru Electric Commuter Bike Version 3 for my wife an I. The spring has only just started in our neck of the wood but we have been out a couple times together and I've been out a few times on my own. We live on a very steep hill and have been discourage to go for rides from home because of the difficulty to get back up the hill. During our first few rides, the confidence we have gained from the pedal assists has had us extending our rides far beyond our past patterns because the RadCity bikes make it easy to make it home. We expect many more fun days outside riding our bikes in the days to come. So glad we purchased from RadCity for the great service, quick deliver, ease of assembly and simple intuitive ease of use.


RadCity Step-Thru Electric Commuter Bike Version 3

Keeping up with the grandkids

I love my bike. It took 10 test rides of other bikes to decide that this is the right one for me. It’s still new and holding a charge for a long time. My only criticism is the governor that holds my speed to 20 mph. Going down a long sloping roadway it gets jerky whenever I hit 20.

Great riding bike -

I have had my StepThru 3 for a few weeks now and have already clocked over 125 miles on it. It is an easy bike to ride and the feature of the electric throttle is so very useful. I am looking forward to bicycle adventures this coming summer.

Pure Joy

I am in my happy place when I ride my RadPower ST3. I now ride to work, to the beach, to shop, etc. My world just got a little closer to the things I love with my Rad bike!