Gear/RPM/Speed calculation

[micmac]

For people contemplating a gear change, check out this web site.
http://differentials.com/calc.html
micmac

 

[CottonBurnerz]

I have been using this one..

http://www.tchracing.com/tech/gearc...m&givenval=30&givenvaltype=MPH&selectedgear=3