Rad Power Bikes RadRunner Review | A Classic Made Current?

The RadRunner includes a removable, UL 2271-certified 624-Wh battery that Rad Power Bikes advertises gives the bike a range of 17 to 55+ miles. We tested the bike’s range using the method explained above. With results of 26.9 and 44.8 miles, our test riders exceeded the advertised minimum range but fell somewhat shy of the advertised maximum.

Both results are notably below-average when compared to similar e-bikes we’ve tested; a group of comparably-specced and priced models averaged 37.3 and 69.0 miles.

Two factors likely contributed to the RadRunner’s results. First, the bike’s battery is relatively small compared to those of its peers. Second, since it relies on a cadence sensor instead of a torque sensor (most similar models paired their motors with torque sensors that resulted in variable power output), its pedal assist system was less energy-efficient.

Case in point: the RadRunner expended 13.9 watt-hours per mile (Wh/mi) in its PAS 1 range test and 23.2 Wh/mi in its PAS 5 test. On average, similar models we’ve tested used 11 and 20 Wh/mi, respectively.

While the RadRunner is equipped with a 624-Wh battery, the comparison group carried batteries that averaged 732 Wh. This additional capacity, especially when combined with more efficient torque sensors, allowed the comparison group to stretch its battery charge across a greater distance.

Our tests suggest that riders could travel 13-14 miles on the highest power level before needing to turn around. Considering that most e-bikers we interact with tend to stick relatively close to home, we expect most RadRunner riders to be satisfied with our results.

It’s important to note that we performed our testing with no weight on the bike’s cargo rack; those carrying cargo or passengers should expect fewer miles. Still, our Speed Test indicated that those in relatively flat areas may not need to ride in the bike’s highest assist levels, so it’s conceivable that such users may find themselves on the high end of our results.

When recharging is needed, tThe RadRunner includes a 2-amp charger that can power up the battery in roughly 6.5 hours.

Climbing power is essential when hauling groceries, kids, or other cargo, which is why we subject e-bikes to the Hill Test explained in the graphic above. The RadRunner completed our test in 2:01 on throttle power alone, while added leg power helped it complete a second max pedal assist test in 1:48.

For comparison, a relatively small group of similar models tested at our new Hill Test location, the Devil’s Backbone, averaged 1:49 on throttle and 1:50 when pedaling. As such, the RadRunner placed slightly below average in its first test and roughly average in its second.

While its results may not seem that impressive in relation to its peers, the RadRunner exceeded our expectations based on its motor specs. Like all models from Rad Power, the bike’s motor does not peak above its stated nominal 750W rating. This limits its climbing power but grants it the steady, safe, and controlled feel that we’ve come to expect from the brand.

In contrast, the motors on most of the bikes used for comparison could peak above 750W when climbing; they averaged a maximum of 1,029W. Additionally, the RadRunner’s motor produces up to 60 Newton-meters (Nm) of torque—a relatively low amount when compared to the 78 Nm average of similar models.

Why was it able to approach the average among similar models if its motor is less powerful? The answer likely comes down to weight; at around 64 lbs, the RadRunner is relatively light for its style. Similar models we tested weighed closer to 80 lbs, which meant that their motors had more resistance to counteract when traveling on an upward slope.

In my experience, the RadRunner handled hills with confidence, even if it was not a speed demon. The bike’s throttle carried me over a few intimidating hills without complaint. When pedaling, the experience was more active and engaging than riding on flat ground (my effort contributed more to moving the bike), but I never felt strained or tired.

It is again worth noting that we perform our formal testing without cargo for the sake of easier comparison. As such, the bike’s times/speeds would likely be lower when more of its payload capacity is used.

Still, this version of the bike was every bit as capable as previous iterations have been for us, proving that the RadRunner is a classic for good reason!

When we last tested a comparable RadRunner model, the RadRunner 2, the bike was equipped with mechanical disc brakes. These proved effective in our testing, but hydraulic disc brakes typically provide more consistent stopping force, better modulation over speed, and require less grip strength to engage.

For this reason, we were pleased to note that the RadRunner included a Gemma hydraulic brake system, pairing two-piston calipers with 180mm rotors on both wheels. These brakes resulted in an average stopping distance of 20’ 6”, which is on par with similar models we’ve tested; these bikes averaged 20’ 4”. Again, we perform our testing with no added cargo.

In the context of our testing, average results are fantastic; they indicate that a bike is specced appropriately and able to match the performance of comparable models on the market. With this in mind, we’re extremely satisfied with the RadRunner’s results.

Based on my personal experience, I would not have been surprised to see shorter-than-average results from the RadRunner’s Brake Test. During my time on the bike, I noticed that its brakes felt powerful and extremely quick when bringing the bike from top speed to a complete stop. They felt safe and strong without seeming too aggressive.

With great test results and excellent real-world performance, we can confidently say that the RadRunner’s brakes are safe and effective.

As a measure of how a bike feels to ride, the topic of ride quality can be subjective, but we do our best to take an objective view during our evaluation. In general, the RadRunner’s ride quality was great, though we identified at least one area with some room for improvement.

Rad Power Bikes manufactures a single frame size for the RadRunner. Its long seatpost and combination of a threadless stem and BMX-style handlebars grants a relatively wide range of adjustability, making the bike suitable for riders between 4’ 11” and 6’ 2”.

At 5’ 11”, I found a generally comfortable fit, though I opted to set the saddle slightly lower than I usually do (when leg extension matters) so as not to make the handlebars feel too low.

I liked the overall feel of the handlebars and grips. They were comfortable and allowed for easy operation of the throttle and display/control panel, though I would have preferred lock-on grips to the movable press-fit variety.

The bike’s saddle has not changed much since the RadRunner’s release. While some riders may appreciate it, our team found its stubby wedge shape to be relatively uncomfortable on long rides. Fortunately, saddles are easily swapped, and Rad offers three other options with various shapes, thicknesses, and widths to accommodate other preferences.

I found the bike’s handling to be playful and quick; the bike’s relatively short wheelbase, rigid fork, and 20” wheels gave it a nimble and maneuverable feel. With no suspension, bumps were noticeable, though the RadRunner’s 3.3” wide tires helped to absorb bumps and smooth the ride.

Rad Power Bikes advertises the Runner’s custom tires to be suitable for all types of terrain. I was somewhat skeptical considering their textured but relatively smooth tread, but I was pleased to note that they performed well on dirt and gravel. Their width provides stability, while making it possible to ride with relatively low pressure to improve shock absorption and grip.

As I referenced earlier in this review, the bike is remarkably easy to use. Without the need to shift, it’s possible to set your preferred assist level, hop on, and ride. Operating the bike is simple; users need only to adjust power levels via the arrow buttons on the display, then pedal or twist the throttle to get moving.

Rad’s color display is another highlight; it presents well-organized ride data in an easy-to-decipher format. It also offers two appreciated features: an optional 4-digit security pin and maintenance reminders for the drivetrain, brakes, and tires. Owners can monitor the status of each individually or all three elements in one combined tracker.

As far as accessories are concerned, the RadRunner includes only the basics: the frame-integrated cargo rack and an integrated light system that incorporates brake light functionality. Rad offers a myriad of optional accessories to expand the bike’s utility, including cargo storage, pet carriers, seating options, and many others.

Overall, the RadRunner is exactly what it needs to be: simple but effective. It’s an entry-level e-bike designed to provide an easy experience for parents, errand-runners, leisure riders, and beyond. From our perspective, it fits the bill admirably.

As the old saying goes, if it ain’t broke, don’t fix it! The RadRunner is—and always has been—a solid, dependable, and versatile e-bike for new and experienced riders alike. In its latest iteration, the entry-level version of the bike is more affordable than ever while offering practical upgrades that give its classic design more contemporary functionality.

Since the company’s founding, Rad’s mission has centered around encouraging more people to substitute their automobiles with bikes. With its ability to be adapted for various uses, its powerful but family-friendly motor, and its simple operation, the RadRunner has been instrumental in meeting this goal.

The bike generally performed well in our testing, though it showed some areas with room for improvement. We liked the Runner’s controlled and approachable power levels, its ease of use, and its capable motor. It comfortably met and maintained Class 2 speeds, it climbed hills effectively, it braked safely and reliably, and it provided usable, practical mileage.

In contrast, we expect the bike’s programming would feel better balanced when carrying cargo, but altered programming would be more user-friendly for those cruising without a heavy load. Additionally, while Rad offers a variety of saddle options for separate purchase, the standard seat wasn’t the most comfortable on long rides.

Minor flaws aside, we feel the RadRunner is a tried-and-true classic that is well worth its price. We’re pleased to note that Rad Power Bikes equipped the bike with useful, modern upgrades that include an ultra-safe battery, an effective hydraulic brake system, and a clean, color display with optional security and maintenance features.

As it stands, the RadRunner remains one of our most recommended e-bikes due to its steady, consistent performance.

Whether you’re a new rider seeking an affordable, safe, and fun family e-bike, a commuter looking for ways to spend less time in your car, or an aging cyclist wanting an easy-to-use bike that won’t strain your joints, we think you’ll appreciate what the Rad Power Bikes RadRunner has to offer.

Happy Riding! Make sure to let us know if you have any questions or if you think we left anything out in this review of the Rad Power Bikes RadRunner down in our comments section.