C.T.D.M. optimises the casing contour for various performance factors.

Improves wet/winter performance as well as reducing stone retention.

R-Bead reduces stress in the bead area and therefore enhances casing durability.

Reduces noise.

Eject stones from the ribs.

Increases casing stability and durability.

Combats the likelihood of river wear and other irregular wear types occuring on the tyres’ inner ribs.