The right oneelectric bicycle Choosing is not always easy! But with so many engines available, the process has become even more complicated. The market leaders are Bosch and Yamaha.
One of the most frequently asked questions is what the difference is between these two engines.
Which engine has the most power? Which is the most reliable? What are their characteristics? German or Japanese engine? Check out our comparison!
Bosch vs Yamaha engine: the most important differences
Despite what you might think, the engines of the two brands are not that different. Firstly, they are all integrated into the lower part of the frame, together with the bottom bracket. This provides a natural and efficient driving feeling.
The design
At a glance you can see that the Yamaha- and Bosch-motors similar in shape and size seem. They are also compact.
One of the most obvious visual differences is the size of the output gear. If you have the Bosch engine compares with the Yamaha engine, you will notice that the output gear at the Bosch engine is much smaller. Why? Because it has an internal drive.
A small technical point: there should be a ratio of 2.5 between the engine output sprocket and the rear cassette (for example, if the transmission output sprocket has 12 teeth, then the cassette should have 30 teeth). The advantage? The chain cannot possibly derail. It's really practical!
On the other hand, you will notice that the Yamahamotor has a standard size crown wheel and that the drive is not internally switched. It is more flexible when shifting.
Sensors
Bosch and Yamaha use a 3-sensor system that continuously analyzes cadence, torque and speed.
It measures this data more than 1000 times per second. This means that the electric bicycle is in phase with the user. The power delivered is as natural as possible.
The power
The power is the same: 250 watts.
Driving modes
Bosch and Yamaha motorcycles have different driving modes:
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