How to read a tire sidewall

Reading the sidewall of a tire

Learn how to understand the sidewall markings on your tires.

XeoBib: Line
VF = Very High Flexion: Tire Category
650: Nominal tire cross-section in mm
60: Aspect ratio (ratio of sidewall height to nominal tire cross-section) in %.
R: Structure: “R” for radial “-” for diagonal
38: Nominal rim diameter in inches
155: Standard load index
D: Standard speed index
Radial: Structure indication
Tubeless: Tubeless tire
Michelin® X®: Registered trademark

Edito image marquage pneu Help and Advice

Edito image marquage pneu Help and Advice

Le marquage d'un pneu agricole

Picto image cotes dimensionnelles Help and Advice

Picto image cotes dimensionnelles Help and Advice

Cotes dimensionnelles

Casing and Rim Side Measurements

 

Casing 
S:
Tire section width
R’: Radius with static load
R: Radius without load
D: Outer diameter, equal to 2 R

Rim
Ø:
Diameter of the rim
F: inner width
H: suspension height

The 42" series and their 38" equivalents 

 

picto tyre markings 4 help and advice

picto tyre markings 4 help and advice

You are using and outdated Web Browser.

You are using a browser that is not supported by this website. This means that some functionality may not work as intended. This may result in strange behaviors when browsing round.

Use or upgrade/install one of the following browsers to take full advantage of this website

Firefox 78+
Edge 18+
Chrome 72+
Safari 12+
Opera 71+