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by sandworm101 1297 days ago
Maybe in the 1980s. On a modern bike it is integrated into the transmission, usually on the drive sprocket. And then the signal is used in slightly different ways, with the odometer being accurate and the speedometer generally reading a few % higher than the actual speed. Some bikes may also use it for electronic engine/emission controls too.
1 comments

Not all bikes. 2023 DRZ 400sm still has a cable (they haven't modified the design in years). Most scooters/motorbikes are cables too.

Even still, it is easily hacked on almost any vehicle (Tesla is a great example of a connected car making it much harder) and there is plenty of YT all about it...

https://www.youtube.com/watch?v=hfPm-9p0YUI

https://www.youtube.com/watch?v=1MFd7Ufe7v4

https://www.youtube.com/watch?v=8wygJwWnFm4

https://www.youtube.com/watch?v=7Q_AMBBNk2A

When I was living in Vietnam, I could pay someone about $5 to do it for me.

What I learned pretty quickly was that the ODO is the last thing I'd rely on for price.