Coleman Tyre Company - General Tyre Checks

Check those tyres

All tyres should be checked professionally. Even relatively new tyres not just old tyres need regular checks for sidewall damage, such as cuts or bulges, and treads need checking for nails or tears. Although the minimum amount of tread required for a car to be roadworthy is 1.5 mm, it is wise to replace tyres at 2 mm, as wet-weather grip is diminished as less tread remains. Remember always check the spare when carrying out tyre inspections.

Reading tyre wear




Wear Pattern:
Excessive wear on shoulders or outer edges

Possible causes -

• Under-inflation
• lack of rotation
• high speed cornering



Wear Pattern:
Excessive wear on centre section

Possible causes -

• Over-inflation
• lack of rotation



Wear Pattern:
Excessive wear on one side of tread

Possible causes -

• Excessive camber



Wear Pattern:
Feathered or saw-tooth tread

Possible causes -

• Incorrect toe-in




Wear Pattern:
Irregular depressions or spots

Possible causes -

• Unbalanced tyre and wheel
• defective tyre



Wear Pattern:
Cupped or scalloped depressions

Possible causes -

• Lack of rotation
• improper alignment
• worn or damaged steering or suspension parts



Wear Pattern:
Cracked ribs

Possible causes -

• Overloading
• high speed driving
• alternate over and under-inflation

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