E-Bike Repair Study by Wertgarantie: the battery is the major weak point of the e-bike
Thanks to the high level of comfort and effortless mobility they offer, e-bikes are becoming more and more popular every year. In 2019, there were already 5.9 million e-bikes in German households, which corresponds to an increase of 1.4 million compared to the previous year. The motorised bikes are exposed to heavy strain, but how robust are current e-bikes on the market? And how satisfied are their owners with them? A representative survey carried out by Wertgarantie has shown that, among other things, some manufacturers’s core components, chiefly the battery and motor, are fragile.
In cooperation with Statista, the specialist insurer Wertgarantie carried out a representative survey of 1,714 e-bike riders aged 18 and over. Around 20 per cent of the e-bike riders surveyed complained about technical defects. In half the cases, the battery caused problems. While the BT-E8020 by Shimano has a high susceptibility to damage with 57.1 per cent, the Lithium Ionen battery by Yamaha convinces with a damage ratio of only three per cent. “Inappropriate charging or storage can have a negative impact on the lifespan of batteries. However, the difference between the Shimano and Yamaha batteries is so drastic that it is unlikely to be caused by the usage behaviour of the e-bike owner,” explains Marco Brandt, Division Manager Digital Business at Wertgarantie. The survey results show that almost half of all e-bike riders who park their e-bikes outside overnight leave the batteries attached to the e-bike. With proper care and handling of the battery, users will enjoy riding their e-bikes for a long time. 87 per cent of Hercules Rob Fold R8 500Wh owners are particularly satisfied with the battery range, closely followed by users of the BMC Alpenchallenge AMP Sport One with 84 per cent. On the other hand, with only 50 per cent satisfaction, owners of a Zündapp Silver 5.5 battery are unhappy with the range potential.
Bosch distinguishes itself with several good quality motors
With 37.3 per cent, motors are the second most common source of technical problems with e-bikes. According to their users, the motors of the Bosch Active Line are particularly robust. Only 6.4 per cent of these motors showed damage. Shimano Steps E8000 brings up the rear in regard to robustness. Here, almost a third of users reported damage to the motors. “If the motor breaks down and the driver has to continue cycling under their own power, this is particularly annoying on demanding routes,” says Brandt.
Most accidents involve 30 to 39 year olds
Motorised bikes are very popular. More than 60 per cent of users are under 50. Only 14.2 per cent are 60 years or older. It is especially surprising that e-bike riders aged 50 or older are more cautious in traffic than the 30–39 age group. That explains the low accident rate of 9.6 per cent. The e-bike riders in the 30-39 age group are apparently faster and less careful and thus have the highest accident rate with 38.4 per cent.
Further exciting results on the robustness and reparability of well-known e-bike manufacturers, as well as the newly launched E-bike Repair Index can be found in the current E-bike Repair Study by Wertgarantie.
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