Tires, again

The sidewall got taller, so the speedometer slowed down. when the speedo indicated 60 in the past, you were probably doing very close to 60, probably something like 58.5. Now, 60 means something like 65 or 67.

The factory error in a speedo shoujld be such that the indicated speed is always a little faster than reality. This will give you a slight hedge against the speed laws. With the change you have done, gotten taller tires, the speedo will not read slower than reality, perhaps enough slower to put you at risk of overly aggressive traffic cops.

This should help

"There are some simple truths...And the dogs know what they are." Joseph Duemer

Thanks for the help, guess I will just have to be a little easier on the gas.