Syncro Tire Size and Speed Calculator

If you are thinking about upgrading to larger tires, plug the numbers in here and see what speed you will be doing at a particular RPM.

For Vanagons - a general rule is that can't go above 29.5" tall on a regular 2WD or Syncro with stock trailing arms. You can not go above 31" on a Syncro with Syncro 16 trailing arms which are about 25mm longer than the standard Syncro trailing arms.

Tire size:

Width (mm)

Sidewall Ratio


Rim Size (in)

Stock Vanagon Tires Sizes

185/80R14
195/75R14
205/70R14

Transmission Gearing:

Final Drive:

at rpm.

Gear ratio:

at


Trans 
Code

Final 
Drive

R

G

1

2

3

4

Bell housing

Diff
Lock

Note

6P

5.43

6.03

6.03

3.778

2.065

1.225

0.854

Gasoline

N

 

6PA

5.43

6.03

6.03

3.778

2.065

1.225

0.854

Gasoline

Y

6ZA

4.86

6.03

6.03

3.778

2.065

1.225

0.854

Gasoline

Y

Drive shaft Decoupler

AAK

4.86

6.03

6.03

3.778

2.065

1.225

0.854

Gasoline

N

North America

AAN

4.86

6.03

6.03

3.778

2.065

1.225

0.854

Gasoline

Y

North America

AGZ

5.43

6.03

6.03

3.778

2.065

1.225

0.780

Diesel

N

AHA

5.83

6.03

6.03

3.778

2.065

1.225

0.780

Diesel

Y

 

AHF

5.43

6.03

6.03

3.778

2.065

1.225

0.780

Diesel

Y

AKE

4.57

6.03

6.03

3.778

2.065

1.225

0.854

Gasoline

N

 

AKG

4.57

6.03

6.03

3.778

2.065

1.225

0.854

Gasoline

Y

AKK

5.83

6.03

6.03

3.778

2.065

1.225

0.780

Diesel

N

 

ALE

5.83

6.03

6.03

3.778

2.065

1.225

0.854

Gasoline

Y

ALK

5.43

6.03

6.03

3.778

2.065

1.225

0.854

Gasoline

Y

Syncro 16

AND

6.17

6.03

6.03

3.778

2.065

1.225

0.854

Diesel

Y

AVF

5.83

6.03

6.03

3.778

1.882

1.225

0.780

Diesel

N

 

AVH

5.43

6.03

6.03

3.778

1.882

1.225

0.854

Gasoline

N

AVJ

5.43

6.03

6.03

3.778

1.882

1.225

0.780

Diesel

N

 

AVK

5.43

6.03

6.03

3.778

1.882

1.225

0.780

Diesel

Y

AVL

5.43

6.03

6.03

3.778

1.882

1.225

0.854

Gasoline

Y

 

AVM

5.83

6.03

6.03

3.778

1.882

1.225

0.780

Gasoline

Y

AVN

4.86

6.03

6.03

3.778

1.882

1.225

0.854

Gasoline

Y

 

AVR

5.43

6.03

6.03

3.778

1.882

1.225

0.854

Gasoline

Y

Syncro 16

AVS

5.83

6.03

6.03

3.778

1.882

1.225

0.780

Diesel

Y

 

AVU

6.17

6.03

6.03

3.778

1.882

1.225

0.854

Gasoline

Y

AVV

4.86

6.03

6.03

3.778

1.882

1.225

0.854

Gasoline

N

 

 The transmissions listed are all the Syncro 4WD transmissions listed in ETKA.

Just a note on tire sizes.  Some tire manufacturers make the "same sized' tire a different diameter than other manufacturers.  The diameter between a new tire and an almost worn out tire are also different. So please keep this in mind when you are using this or any other calculator.  The results will be close but 100%.  Remember close counts in horse shoes, hand grenades and tire sizes!

© 2004 - 2009 David Marshall