Wheel Change

[nu11eaf]

Not always exactly the same circumference, and as I said usually only a small difference in indicated speed so most owners dont bother altering it.

[Wizzpop]

This site calculates the speedo difference between wheel/tyre combinations
https://www.tyremen.co.uk/tyre-size-calculator
(The text needs some editing!)

[Kenp8257]

Originally Posted by Wizzpop

This site calculates the speedo difference between wheel/tyre combinations
https://www.tyremen.co.uk/tyre-size-calculator
(The text needs some editing!)

That's a brilliant calculator, thanks.

Though as much as I'd love say 20's (I have 18's) the cost and insurance implications (modified car) puts a stop to that!

[Clan]

Originally Posted by billyboy235

I mentioned to Volvo that I'm considering smaller wheels, and they "warned" me that the car would need a software update to account for wheel size etc.? Has anyone got experience of this?

Does anyone have experience of "aftermarket" wheel sellers, online or in/near Birmingham? Off limited research they appear to be infinitely cheaper than a main dealer, but I don't want anything that might cause me issues??

Still considering all options, but trying to get better "informed"

Yes the software accounts for any differences in wheel revs per mile and also has an effect on the electric steering rack in limiting the available lock , but there are also mechanical limiters on the end of the rack which may need changing . The accessory web site under "wheels" , will indicate what is needed for which wheel ...