An electric bicycle that suits your route may still be awkward to store at home. Before comparing motors, consider the whole journey: hills, surface, luggage, parking and stairs. Those details often clarify the choice more than a large advertised range figure.
Update: we have removed unsupported component claims about particular models and the earlier battery-to-distance ranges. A given battery capacity does not guarantee a fixed number of kilometres.
Check which vehicle category you are buying
Spain’s Order PJC/780/2025 defines a pedal-assisted cycle with an auxiliary motor rated at no more than 250 W continuous power: assistance decreases progressively and stops before the vehicle reaches 25 km/h, or when pedalling stops. A bicycle in this category has two wheels. This describes assistance, not promised range.
Request the model’s documentation and distinguish continuous rated power from advertised peak figures. If its features fall outside that definition, check its classification and requirements before public-road use. Do not assume every product called an e-bike follows the same rules.
Choose for an ordinary day
- Urban journeys: check riding position, lights, mudguards and how luggage will be secured.
- Trails: ask whether the frame, wheels and components are intended for your particular use.
- Storage: measure the available space and try moving the bicycle comfortably.
- Charging: confirm where you will plug it in and whether removing the battery is practical.
A motor-position label is not a verdict on the complete bicycle. Try starting, low-speed assistance and manoeuvring. When comparing models, use a similar route and assistance setting if the shop allows it.
What battery watt-hours tell you
Watt-hours describe stored energy, not distance. As a nominal calculation, 36 V multiplied by 10 Ah equals 360 Wh. Turning that into a range estimate also requires knowing the system’s energy use during the journey.
Bosch identifies temperature, weight, stops and gear use among the factors affecting range. Ask which conditions underpin any estimate and leave a margin for the return trip. A brief flat-road test does not establish the range with luggage and hills.
Questions to ask before paying
- Does the size let you mount, stop and put a foot down confidently?
- What is the complete weight with battery and accessories?
- What does the battery warranty cover, and how are repairs arranged?
- Are service support and spare parts available for this system?
- Which charger does the model require, and what care does its manual specify?
- What is the final cost including assembly and necessary accessories?
Common questions
Is a bigger battery always better?
Balance capacity against distance, manageable weight, storage and budget. Extra capacity may be unnecessary if it makes a short-trip bicycle harder to carry; a smaller number alone is not a reason to reject a model either.
Can I choose from a review alone?
Use reviews to prepare questions, then check the exact model year, version and equipment. Someone else’s journey will not automatically match yours.
Archive digital illustration of an imaginary bicycle: it depicts no real model or proven performance. For trips, also see our offline maps and weather-planning guide.
Sources consulted
Sources checked: 23 September 2026.
