DAMAGES

DESCRIPTION

CONCLUSION

VISUAL

   - Tire is deformed: distorted, oval,…

Change

BUBBLE

   -  Tire has phenomenon of top bubble, section bubble or hoop bubble with over 30% tread erosion.

No change

   - Tire is bloated if it is inserted in rim

- Change:  Erosion ≤ 30% tread wear.

- No change : Erosion > 30% tread wear

TREAD CRACK

   - Crack in grooves of tread, total length of cracks ≥50mm (for tire ≤10), ≥100mm (for tire >10).

TREAD BREAKDOWN

   - Tire has partial tread breakdown because of insulation or  or scattered breakdown on the surface of tire

RUBBER CRACK

   - Section or surface of tire has cracked rubber due to insulation or joints splitting out horizontally. 

   - Section or surface of tire has cracked rubber due to other reasons as stone, cutting objects…

No change

TIRE HOOP DEFECT

   - Tire hoop has breakdown

- Change  :  Erosion ≤ 30% tread wear.

- No change : Erosion > 30% tread wear

   - Tire hoop is not scratched but bead is exiting out

   - Tire hoop is eroded by belts, and then bead is exiting out partially towards the perimeter.

No change