This article answers exactly that: with concrete figures, a clear comparison, and an honest look at what truly matters in everyday life.
What does acceleration mean for an e-bike?
Acceleration describes how quickly a vehicle changes its speed – measured in meters per square second (m/s²). The higher the value, the faster you go from zero to a certain speed.
For a pedelec, the relevant target speed is 25 km/h – that's where the legal motor assistance ends. So the question is: How long does it take an e-bike to reach this mark?
25 km/h corresponds to 6.94 m/s. With an average acceleration of 0.835 m/s² – a typical value for a well-motorized pedelec – this process takes around 8.3 seconds.
That sounds abstract. It becomes more tangible when compared:
| Vehicle |
Typical average acceleration |
0–25 km/h in |
| Pedestrian (brisk start) |
~0.5 m/s² |
– |
| Bicycle without motor (everyday rider) |
~0.5–0.8 m/s² |
9–14 s |
| E-bike / Pedelec |
~0.7–1.5 m/s² |
5–10 s |
| 50 cc moped (up to 45 km/h) |
~1.5–2.0 m/s² |
– |
| Mid-range car |
~3.0–5.0 m/s² |
2–3 s |
| Sports car |
~8–12 m/s² |
< 1 s |
An e-bike therefore accelerates noticeably faster than a normal bicycle – but it moves in its own league, significantly below motor vehicles. For city traffic, this is exactly the right measure: you get away smoothly without endangering others.
The four factors that determine e-bike acceleration
1. The motor – torque beats power
When accelerating, it's not the nominal power (250 W) that's crucial, but the torque. Torque is the rotational force that sets the drive in motion – the higher it is, the more powerful the acceleration from a standstill.
Rear hub motor (like the Bafang drive in MYVELO electric folding bikes):
- Torque directly at the rear wheel: approx. 40–55 Nm
- Maximum torque is applied when starting (low RPM)
- Continuously decreases with increasing speed
- Low maintenance, quiet, ideal for flat urban terrain
Mid-drive motor (e.g., Bosch Performance Line):
- Torque at the crank: 50–120 Nm
- Benefits from the derailleur – in a lower gear, the torque at the wheel is multiplied
- Better response on inclines
- Heavier and more complex to maintain
For the typical city commuter, the difference in acceleration on flat asphalt makes little difference. As soon as inclines come into play, the mid-drive motor has clear advantages.
2. Total weight – the most honest brake
The basic law of physics is: Acceleration = Force ÷ Mass. The heavier the system of bike and rider, the slower the acceleration – with the same motor power.
An example with a Bafang rear hub motor that delivers a driving force of approx. 180 N:
| Total weight (bike + rider) |
Acceleration (peak) |
| 90 kg |
~2.0 m/s² |
| 110 kg |
~1.6 m/s² |
| 130 kg |
~1.4 m/s² |
In addition, heavier e-bikes – often due to larger batteries – have higher rolling resistance themselves, which further dampens net acceleration. A light electric folding bike with its own weight of around 17–20 kg has a real advantage here.
3. Tire size and rolling resistance
Smaller wheels (16–20 inches) have a smaller circumference. This means: For the same motor speed, they cover less distance per revolution – which translates into a subjectively more direct pull when starting. Many riders therefore find 20-inch electric bikes particularly agile and zippy in city traffic.
At the same time, narrower tires at higher pressure roll more efficiently – and thus deliver more of the available motor power as propulsion rather than as heat.
4. Support level and gears
Most pedelecs have 3–5 support levels. In the highest level, the motor gives its maximum boost – and acceleration is correspondingly strongest. In eco mode, motor assistance can be throttled to 30–50%, which significantly extends acceleration but increases range.
If you're in too high a gear when starting, you also lose traction: the motor revs higher, the gear ratio is unfavorable. Low gear, maximum support level – that's the formula for the most powerful start.
Peak acceleration vs. average acceleration
A common misconception: the "maximum acceleration" of an e-bike is not constant. It is highest right when starting – when the motor and rider together put the most force into the drive and the speed is still low. As speed increases, motor assistance decreases, and with it, acceleration.
What is perceived as "acceleration" in practice is therefore the average value over the entire process from 0 to 25 km/h – and this is between 0.7 and 1.5 m/s² for typical pedelecs.
| E-bike type |
Average acceleration 0–25 km/h |
Time to 25 km/h |
| Light folding bike with hub motor |
~0.8–1.0 m/s² |
7–9 s |
| City e-bike with mid-drive motor |
~1.0–1.3 m/s² |
5–7 s |
| E-MTB with powerful mid-drive motor |
~1.2–1.5 m/s² |
5–6 s |
| Heavy cargo e-bike |
~0.5–0.7 m/s² |
10–14 s |
What this means in everyday life
Theory is good – practice is better. What do these numbers really mean?
At the traffic light: An e-bike with 0.9 m/s² reaches 25 km/h in 7–8 seconds – while a normal cyclist needs 10–14 seconds for this. You get away sooner and thus create distance from starting cars.
In the roundabout: The powerful acceleration allows you to use safe gaps that you would miss with a normal bicycle.
On short inclines: This is where the biggest difference to non-motorized bikes becomes apparent. While inclines strongly dampen the acceleration of a normal bicycle, the motor compensates for the uphill resistance – you accelerate almost as quickly as on flat ground.
In stop-and-go traffic: E-bikes with high torque excel precisely here. Frequent starting requires little energy, is not very strenuous, and is quicker than in a car.
Acceleration isn't everything – but it's more than you think
When buying an e-bike, people rarely explicitly ask about acceleration values. And yet, it is precisely this feeling with the first pedal stroke – this smooth, powerful acceleration without effort – that convinces many people to switch to a pedelec.
A good motor doesn't just deliver more watts. It delivers the right torque at the right time: directly when starting, exactly where you feel it.
MYVELO electric folding bikes use the Bafang rear hub motor – low-maintenance, quiet, and with a direct acceleration behavior that is convincing in city traffic. Combined with a frame under 20 kg and 20-inch wheels, this creates a package that is agile, responsive, and comfortable.
Conclusion
An e-bike typically accelerates at an average of 0.7–1.5 m/s² – depending on the motor, weight, and support level. This is significantly more than a normal bicycle and sufficient to confidently keep up in city traffic. The crucial factors are motor torque, total weight, and gear selection when starting.
Anyone looking for a light, agile e-bike with direct acceleration will find a reliable everyday companion in a well-tuned electric folding bike with a hub motor – without compromising on comfort.
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