Road vs. Engine Speed
Copyright © 2003 Eric Fahlgren
Last updated 2007-12-18 07:05 PST

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Wheel and Tire Parameters
Tire sectionmm
Tire aspect %
Rim diameterinches
Confirmation of tire size 
Tire diameterinches
 
Overall Drive Ratio
Gear ratio  
Ring and pinion ratio 
Know the code?
Final drive ratio 
 
Distance per Engine Revolution
Per crank revolutionfeet
Per crank revolutionmeters
 
Road Speed at Given Revs
Engine speedRPM
Resulting road speed MPH/KPH
 
Revs at a Given Road Speed
Cruising speed MPH/KPH
Resulting engine speedRPM
 

Notes

 
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