(...)
“Speed pedelecs need a rethink”
Dirk Zedler is a bicycle and electric bicycle expert and founder of the test institute Zedler. We asked him about the technical differences between speed pedelecs and electric bicycles.
MYBIKE: What are the technical features a speed pedelec must have?
Zedler: Speed pedelecs are vehicles, therefore require an operating licence. Manufacturers often equip these vehicles with very high-value components. For maintenance work mainly original spare parts must be used. With regard to tyres, for example, you need replacement tyres of the same dimensions and with UN ECE-R 75 approval. You can find more detailed information on spare parts in our “Guidelines for the parts replacement on speed pedelecs.” Many pedelecs have full beam and brake lights as standard, daytime running lights are mandatory, as well as rear-view mirrors, reflectors, insurance licence plate lighting and a horn.
Does the chassis of a speed pedelec have to be designed differently to an electric bicycle?
The probability of getting into a challenging riding condition is significantly higher in a vehicle that is generally ridden at higher speed. As regards design, reputable suppliers add more reserves to the riding stability. Suspension forks and wide tyres should be included in the basic equipment.
Are there further technical points in which speed pedelecs should differ from electric bicycles?
The mileage is often significantly higher than that of an electric bike with pedal assist up to 25 kmh. Wear is therefore a major issue that is not taken seriously by all manufacturers. The brake pads and discs, the chains and sprockets are still designed on the basis of mechanical bicycles. This is where a rethink is needed.
Read the entire German article
online.
Author: Georg Bleicher
Photo: Zedler-Institut
