CL9 VSA problems after larger wheel upgradee

[euro1603]

Hi Guys,

Anyone had problems with the VSA after changing to 18ich wheels ? the manual says by changing the wheel lager then the stock rims could cause problems with the VSA system..

[aaronng]

Keep the rolling diameter the same and VSA will be fine.

[euro1603]

Keep the rolling diameter the same and VSA will be fine.

well the rolling diameter will change when you increase the wheel size..

[EuroAccord13]

well the rolling diameter will change when you increase the wheel size..


Not when you match the right sidewall profile against the larger rims....

[albii]

rolling diameter cannot change legally + or - 14 mm..
so the bigger wheel you go the lower profile the tyre, otherwise it will throw the speedo out.
BTW i had 18x8 and 235 40 18 on my cl9 and the vsa was fine.
I have 19x8 and 245 35 19 on my cu2 and thats fine also.

[aaronng]

well the rolling diameter will change when you increase the wheel size..

No it doesn't if you reduce the tyre sidewall height like EuroAccord13 said. If you have 225/45 R17 now as stock, go for 225/40 R18 and your VSA will work fine.

[Crapdaz]

No it doesn't if you reduce the tyre sidewall height like EuroAccord13 said. If you have 225/45 R17 now as stock, go for 225/40 R18 and your VSA will work fine.
As euroaccord13 and aaron has said, it's been covered before too.

[euro1603]

rolling diameter cannot change legally + or - 14 mm..
so the bigger wheel you go the lower profile the tyre, otherwise it will throw the speedo out.
BTW i had 18x8 and 235 40 18 on my cl9 and the vsa was fine.
I have 19x8 and 245 35 19 on my cu2 and thats fine also.

thanks albii,

235 40 18 were the size i was looking at getting, do you have a photo of your ride ? is 235 in line with the wheel arch ?

[albii]

They are 18x8 45p offset with 235/40/18
http://i62.photobucket.com/albums/h86/Albii/Picture411.jpg