The Roadrunner D4+ 4.0 – A Lot of Scooter for Under $1500
Mitchell Anderson
Mitchell has been fascinated by electric scooters since 2019. He began sharing his enthusiasm on his YouTube channel, “RK9 Rides,” in 2020. He joined Rider Guide in 2023, and between the two channels, he spends seven days a week riding, testing, and writing about electric scooters. He has tested dozens of models from dozens of brands and is always on the lookout for the newest and greatest scooters. His current favorite models are the Nami Klima and the NIU KQi3 Max.
The Roadrunner D4+ 4.0 electric scooter has been through a few iterations, each one more refined than the last. The latest model has dual 1000W hub motors, a 52V 23.4Ah battery for longer range, 10″ tubed tires with split rims, and dual hydraulic suspension with adjustable preload.
Given these specs, you might expect some serious performance from this scooter. Does it actually go 40 mph? We find out in our speed test, and we’ll get to all the other features that make this electric scooter a serious contender for best in class at its current price of $1,499.
Who Is This Scooter For?
The Roadrunner D4+ 4.0 is made for the electric scooter enthusiast ready to step up to a dual-motor intermediate ride with some premium features and loads of power
It’s also a great choice for heavier or taller riders, with its weight capacity of 330 pounds telescoping stem, and massive deck. The scooter’s a little heavy at 70 pounds and not the most portable for commuting, but it folds compactly and isn’t too difficult to carry up and down stairs.
In our review of the Roadrunner D4+ 4.0, we look at the refinements of this 40-mph scooter, check out its ride quality on-road and off-road, and answer the question: Is it worth it?
Roadrunner D4+ 4.0 Specs
| Make | Roadrunner |
| Model | D4+ 4.0 |
| Weight | 70 lbs |
| Motor power (continuous) | 2,000W |
| Motor type | Dual motor |
| Top Speed | 40 mph (Manufacturer spec) 30.6 mph (ESG tested) |
| Range | 40 mi (Manufacturer spec) 19.9 mi (ESG tested) |
| Battery capacity | 1216.8 Wh |
| Max rider weight | 330 lbs |
| Brake type | Hydraulic + Hydraulic |
| Tire type | Pneumatic (Tubeless) + Pneumatic (Tubeless) |
| Suspension type | Hydraulic + Hydraulic |
| Built-in lights | Front + Rear |
| Water resistance | IP53 |
| Additional Features | Adjustable stem, quick-release wheel and components interface, standard steering damper |
Our Video Review
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