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Gearbox & Speedo Ratio Calculator

 
 
   Select Details   
Tyre Size 
Drop Gear Ratio 
Gearbox type 
Final Drive Ratio 
TPM of Speedo 
Worm & Pinion ratio 


 
 
   Calculated Speed by RPM in each Gear   
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   Actual Speed vs (Speedo Reading)   
RPMx100
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   Guessworks Feature Product - 16 Tooth Speedo Pinion   
When changing wheel sizes, final drive ratios or Speedo clusters it is essential to make sure the speedo cable worm and drives are correct for the car. There are many combinations available, some work better than others, but one which is suitable for the application can usually be found.

This is for a single pinion drive with 16 teeth.

These are now very difficult to source, new or used.

more.......

£ 20.00 + VAT
Learn more about this product, or purchase. Learn more about Guessworks Gearboxes

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