Three straight grooves
Z pattern groove design
Increased traction on water filled surfaces
Refined stability & traction
155 is the width in millimetres of the tyres cross section.
- Aspect Ratio70
70 is the Aspect Ratio, it is the ratio of the sidewall height to the cross section width.
Radial construction. R stands for radial-ply construction.
13 inches, stands for the diameter of the wheel that the tyre is designed to fit.