When to change your tyres

	Wear on the outer edges. Possible cause - under-inflated tyres.		Feathered treads (easier to feel than see) Possible cause - Wheel alignment out.
	Wear on the centre section of the tyre. Possible cause - over-inflated tyres.		Irregular bald spots Possible cause - Unbalanced tyre.
	Wear on one side of the tread Possible cause - Wheel alignment is out.		Cupped depressions Possible cause - Worn shock absorbers or unbalanced braking system