Known for its central drive systems, the German company presents the Hub Line, aimed at urban bicycles and road use
Bosch has announced its entry into an unprecedented segment for the brand in the electric bicycle market. Traditionally associated with central drive motors — installed in the pedal region — the German company presented the Hub Line, its first wheel hub motor, developed for urban, road and gravel bicycles.
The new engine was designed with a focus on energy efficiency, not raw power. It delivers less than 250 W of rated power, with peaks of up to 400 W and torque of 4,6 kgfm, favoring autonomy over extreme performance. According to Bosch, the system can exceed 80 kilometers of range when combined with the PowerTube 360 battery.
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Lightweight, the Hub Line weighs just 2.3 kg, which makes room for more compact bikes and more discreet batteries. The set also incorporates features already consolidated in the brand’s ecosystem, such as customization of assistance modes, theft protection, remote updates (over-the-air) and compatibility with electronic shifters.
The debut places Bosch in a terrain that it itself had little explored. Although it is one of the pioneers and main references in the market of motors for e-bikes, the company has always focused its efforts on central drive systems. The hub motor segment, in turn, is very competitive and populated by manufacturers that offer more powerful and often cheaper units.
The difference between the two concepts helps to understand the turnaround. In central drive motors, the force is applied directly to the transmission system, which usually yields more torque on climbs and better weight distribution. Hub motors, housed in the wheel itself, tend to be simpler and quieter and do not require part of the mechanical maintenance — characteristics that match the urban use for which the Hub Line was intended.
Initially, the Hub Line will only be offered on factory-equipped bikes with Bosch technology. As provided for in the European regulations for the so-called pedelecs, electric assistance is limited to 25 km/h — a restriction that tends to drive away those looking for higher speeds, but which keeps the product within the rules of bicycle circulation in Europe.
The company did not disclose pricing or a release schedule. Like other Bosch systems, the motor should only reach the consumer inside a complete bicycle, with the technology already on board. The eventual sale of the Hub Line as a separate item, later on, could expand the reach of the novelty in the urban micromobility market.
