Electric Commuter Bike
Winner, Best Commuting 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.
Direct Drive Hub Motor
Miles per Charge (estimate)
Hear from Real Rad Owners
Most popular accessories
ABUS Wheel Lock 5650L NR
ABUS Adaptor Chain
ABUS Bordo Granit X-Plus 6500
Top Tube Bag
GUB PRO-3 Phone Mount
The Commuter's Dream
Our iconic commuter bike is back in its Raddest version yet. New for this year, the RadCity 4 comes in a single, 18.5” frame size to fit a wider variety of riders. Its updated, swept-back handlebars are designed to keep you comfortable on longer rides, and it has mounts on its frame for an optional wheel lock.
The RadCity 4 lets you get across town like never before. You'll power over hills with ease, and you'll do it in style and comfort with a stock rear rack, fenders, and front suspension.
Made from a layer of aramid and ceramic particles inside the tire under the tread, the Kenda K-Shield integrated tire liner is a line of defense designed to provide extra protection against punctures from thorns, glass, and other small materials.
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.
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.
180 mm Mechanical Disc Brakes
Tektro Aries brakes provide you with strong stopping power, even in loose terrain.
48V, 14 Ah (672 Wh) with Lithium NMC Samsung 35E cells, rated for 800 charge cycles
48V, 2 Amp Rad Power Bikes smart charger, operates on 100V-240V AC power outlets
Backlit LCD with charge indicator, speedometer, odometer, trip odometer, pedal assist level, wattmeter, and more
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
Intelligent 5 level pedal assist with 12 magnet cadence sensor
Half twist throttle
Water resistant connectors and wiring harness
Display: 5V, 1 Amp
Tektro Aries (MD-M300)
Aluminum alloy comfort grip levers with motor cutoff switch and integrated bell
Brake Pad Material
Tektro 180 mm front and rear
42T, 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, 100 mm travel, with lockout and preload adjustment
DNP 7-speed freewheel, 11-34T
1 x 7-speed
Velo comfort rubber ergo
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
Rear: Integrated, 60 lb carrying capacity, 16 mm tubing diameter
Weinmann Goliath, alloy, double wall, 36H
Velo Plush with lifting handle
Promax, 350 mm x 27.2 mm
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
28" - 37"
*Measured from bottom of the pedal stroke
Front: 100 mm
Rear: 135 mm
Bottom Bracket Shell Width
Square taper bottom bracket
Seat Tube Length
Top Tube Length (effective)
Max Tire Width
Rear Rack Capacity
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:
- 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.
A fuel gauge for your electrons.
Pedal Assist Level
The higher the number, the more the motor will boost you when you pedal.
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
To Fully Charge
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.
Max Motor Torque
Looking for something more accessible?
The RadCity Step-Thru 3 is a great option if you want many of the same features as the RadCity but with a much lower stand over height.
Very pleased with the quality and comfortable ride. Had an issue with the tail light not working but got great assistance from the support team and the problem was resolved. The pedal assist is really great and allows for an extended ride without being worn out. All around a great product.
As a senior citizen I was hesitant to try an electric bike and didn't know where to begin. After reading all the reviews, RadCity Electric Commuter 4 won out. And I couldn't be more satisfied. I now zoom around town wearing my helmet and enjoying the ride feeling safe and secure. The RadCity 4 is well-built and a dream to ride.
I like the bike. Good bike for the money. Had problem with front brake rotor from the box. Took a week to get a long winded answer that did not help me. I will just deal with it .
I understand that sales are high and customer service is busy, but if a company can not supply prompt reliable service, then reduce sales, hire more workers or do something different. Likely your company is trying with service but your not where you should be I would however purchase this bike again
Easy to assemble out of the box. Take time to learn about the basic functions and you're set to ride. I ride around our neighborhood every evening and wave or say hello
Have fun and enjoy your ride.
Most enjoyable bike I have ever ridden. Excellent quality construction.
I've put about 70 miles on it so far no problems Very glad I bought it.
Great Bike, Love it. Will recommend to all my friends and family!
Disclaimer: I don't know much about ebikes (or standard bikes really) and have only owned my RadCity4 for about a month. This bike is fun to ride! I hope it will help me get back in shape as my legs grow accustomed to biking. I took Rad's advice and had a velofix.com tech look at it after I had between 100 and 200 miles on the bike. They did a GREAT job (including a wipe down)! I will be using them again. I recommend Rad bikes to anyone looking for a great eBike.
I appreciate the product and the company customer service mantra. I returned the bike simply because it is too heavy to transport without very special racks and trailer hitch. Otherwise it is a good product to ride
Bike hasn’t been received yet. Looking forward to it.