wheels-inmotion
Active Member
Most fast fit centres/ fitters do not know what these markings mean, so be prepared for a "heads up".
Most branded new tyres will have coloured bands around the circumference, historically they are red/ blue/ yellow.
In most cases it's the red band that's of interest?
What does it mean?
During the tyres construction there is an unavoidable issue, this being the radial casing and the radial tread does not always perfectly align.
So what!
The tread being the friction point and the casing the support, a deviation between the two allows the tyre to deviate from the desired direction.
Meaning....!
This means the tyre can/ will steer the car if the steering is relaxed.
So...
The manufacturer measures the level of deviation and marks the tyre ( normally in a red radial line ) if the line is at the tyre's centre there's no deviation, the further the line moves from the centre toward the sidewall the more powerful the deviation.
What to do?
The lines are fitting instructions for the tyre shop but as said most are not even aware what they mean, so you need to be wise.
What's the instructions trying to say?
The fitter should read the lines and if off centre fit the front tyres with both lines "outside" or both lines inside, or to the "right", this either zeros the pull or pushes it into the road crown.
But i have directional tyres!!
That's not your problem. understand the reason and throw the problem back at the shop.
In summary
How many member here have had new tyres fitted and than experienced a pull?
Further reading
If you need images to visualize this topic you can find them in wim forum but you need to register to see them.
Hope this helps peeps....
Regards
Tony@ wim
Most branded new tyres will have coloured bands around the circumference, historically they are red/ blue/ yellow.
In most cases it's the red band that's of interest?
What does it mean?
During the tyres construction there is an unavoidable issue, this being the radial casing and the radial tread does not always perfectly align.
So what!
The tread being the friction point and the casing the support, a deviation between the two allows the tyre to deviate from the desired direction.
Meaning....!
This means the tyre can/ will steer the car if the steering is relaxed.
So...
The manufacturer measures the level of deviation and marks the tyre ( normally in a red radial line ) if the line is at the tyre's centre there's no deviation, the further the line moves from the centre toward the sidewall the more powerful the deviation.
What to do?
The lines are fitting instructions for the tyre shop but as said most are not even aware what they mean, so you need to be wise.
What's the instructions trying to say?
The fitter should read the lines and if off centre fit the front tyres with both lines "outside" or both lines inside, or to the "right", this either zeros the pull or pushes it into the road crown.
But i have directional tyres!!
That's not your problem. understand the reason and throw the problem back at the shop.
In summary
How many member here have had new tyres fitted and than experienced a pull?
Further reading
If you need images to visualize this topic you can find them in wim forum but you need to register to see them.
Hope this helps peeps....
Regards
Tony@ wim
to read.
