Speedometer off...

My charts says 33 tooth as well based on 26" tire and 3:23's.

Before going any further I would double check the accuracy of that app against an actual GPS unit, or you could have someone pace you. If you still get 45, then something is amiss.


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I have used this app for many other applications with no issues. When you say amiss what else could it be? I really do not want to replace the speedometer or spend a lot of money. I was just hoping to play the speedo gear game and get it close so I have a speedometer and I am not getting 10 more miles on my odometer every hour.