Hello Jean-Marc,
Yes my Haibike was equipped with a Bosch Gen3. It was a good motor, the consumption is better than the Giant motor, the e-mtb mode is smarter than the Giant one, but that’s all...
The Yamaha/Giant is more linear, the tork is better, ant the motor does not stop breaking at the slightest obstacle unlike the bosch engine, even I have tried the Bosh Gen 4 with the extended boost.
The Giant e Trance is clearly a better bike, easy to ride, very confortable, more precise, with a better quality of components...
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