[TR] RPM speed calc

[bill beecher]

Came across this calculator with all the right input fields.  But, I wonder how accurate it really is given the following input. 
TR3 with a 3.7 rear, OD at redline of 5,000rpm.  Vredestein 165R/15 tires, 25.4” diameter.   Should be moving along at 124mph!

https://wahiduddin.net/calc/calc_speed_rpm.htm

Anyone get a different answer? 
Bill
Serenity Now......
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