Considerations in Tread Design

Grip:

• The braking grip of a tyre depends upon two factors

 

  a) Tread material

  b) Tread pattern

• The grip for a particular tread pattern is effected mechanically as well as through friction

 

• The tread must provide suitable sharp edges that will engage with the road

  

Noise:

   

• Various type of vibrations caused by roughness of the road surface 

 

• By the distortion  of the tyre carcass also produce noise 

 

• The type of tread pattern also contribute to tyre noise 

 

• Noise depends upon the nature of the rubber compound

 

Wear:

   

• For less wear the tyre must be such that the individual elements which undergo minimum 

 

  distortion during running 

 

• Tread wear indicators are provided at the bottom of the tread grooves