stiff tires-tramline?

[E5car]

hello everybody.after some research i found that the cause of tramlining are stiff tires...is 215/45/17 or 225/45/17 stiffier?I suppose that the 215/45/17 will cause more tramlining.
Isn,t it?
thanks

 

[Bobby Dazzler]

Generally lower profile, wider, stiffer tyres increase tendancy to tramline. I don't think the difference between the two will be noticeable to be honest.

 

[verysideways]

Also depends on load rating - some tyres are available in normal and XL versions, the XL is the "high load" tyre and will have a stiffer sidewall.

 

[stats007]

Tramlining is not just about compliance in the sidewall but also the contact patch. Given the same profile you'll see greater tramlining with the wider tyre.

 

[E5car]

ok thnks for the reply.because i am planning to put either a 225 or 215 on my w124.
i think that i'll go for 215 as it will provide less tramlines.but is 7.5 rim good on 215?or the rim will curb easily?
thanks

 

[Bobby Dazzler]

ok thnks for the reply.because i am planning to put either a 225 or 215 on my w124.
i think that i'll go for 215 as it will provide less tramlines.but is 7.5 rim good on 215?or the rim will curb easily?
thanks

215/45/17 would be fine on wheels between 7.0 and 8.5 inches wide

225/45/17 would be fine on wheels between 7.5 and 9.0 inches wide

According to the ideal rim-width calculator on Car Bibles : The Wheel and Tyre Bible Page 3 of 4

On that basis 215mm tyres would be generous on a 7.5 inch wheel