JT Si
Senior Member
You claimed that the decimal approximations were not approximations and were exact numbers. I was merely disproving your incorrect claim. I know it's hard to admit to being wrong on the internet, so I'll cut you some slack.You don't need to know the exact tooth count. If 3 significant digits isn't enough precision for you then your head will explode once you factor in tire expansion at higher speeds.
If 0.686 were an exact expression of the gear ratio, it would have to be 343:500.
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