1- Choose Your Bike: The gearing fields will automatically change for you

 
 

800 Classic  1500/1600 Classic/Nomad  Mean Streak  VN 2000 

 
 

2- Enter RPM or speed into green cells & click anyplace on the page.

 
 

3- View results in bold.

 
                       
 

Note, there are additional changeable cells (bottom left) for those who measure speed in KPH

 
 

and for those whose speedometers are not correct.

 
                       
         

Let Engine RPM =

 

Let Vehicle Speed =

   
 

Primary Reduction

                   
 

(for motorcycles only;

 

 

Overall

Vehicle Speed

 

% of max RPM

Engine speed

   
 

use 1.0 for cars)

     

Reduction

   

(RPM)

   
                       

 

Transmission

1st

 

 

 

 

 

 

2nd

 

 

 

 

 

Gear

3rd

 

 

 

 

 

 

4th

 

 

 

 

 

Ratios

5th

 

 

 

 

 

 

6th

 

 

 

 

                       

 

Final Drive Reduction

 

               
                       

 

Tire Diameter (inches)

 

 

Circumference =

         
                       

 

Engine Redline (RPM)

 

               
                       

 

Speedometer Error

 

 

(+) If speedo reads fast and (-) if the speedo reads slow

     
         

Enter (0) to see actual vehicle speeds

     

 

Units (MPH or KPH)

 

               
                       
                       

Automatic recalculation