pegnose
Member
Comparing my travel distance with Google maps routing it seems that my bike counts too many kilometers, something like 45 km Google and 53 km Shimano. I was wondering whether my wheel circumference is setup wrong.
However, on the interwebs I read that if that is the case, the bike would stop motor support at the wrong speed. People reported motor support stopping at 19 km/h and that Shimano fixed this remotely via setting the correct wheel size. Mine does stop the support at exactly 25 km/h taken from the display.
I am asking myself: How could it be that the bike has a different speed estimation than from wheel rotation? It can't right? So if the wheel size is set wrong, the bike would not know. It would count more or less km or miles from the same amount of wheel rotations. But it would still report cutting out motor support at the correct speed, as it just can't know better. It has only one way of speed estimation. Is that correct?
However, on the interwebs I read that if that is the case, the bike would stop motor support at the wrong speed. People reported motor support stopping at 19 km/h and that Shimano fixed this remotely via setting the correct wheel size. Mine does stop the support at exactly 25 km/h taken from the display.
I am asking myself: How could it be that the bike has a different speed estimation than from wheel rotation? It can't right? So if the wheel size is set wrong, the bike would not know. It would count more or less km or miles from the same amount of wheel rotations. But it would still report cutting out motor support at the correct speed, as it just can't know better. It has only one way of speed estimation. Is that correct?