what size tyres

[swainey]

i bought some 18" wheels what size tyres do i need for an 07 vectra???

[JonV6]

Mine have 225/45/18's. You can fit 225/40/18's, personal preference I suppose but I figure the ride might be slightly better with the bigger profile.

[Hideous]

The closest size you'll get to match the standard SRI size 215/50/17, is:
edit: 235/40/18
Can go for 225/45/18 also, not too far out.

This tool is pretty good, can check for yourself with this: -
http://www.miata.net/garage/tirecalc.html

[swainey]

i ordered 225 40 18 are these ok

[Hideous]

i ordered 225 40 18 are these ok

.... deleted post

[Hideous]

Actually, they are ok. I entered a wrong figure.
Just 1 mph on the speedo.

[swainey]

Actually, they are ok. I entered a wrong figure.
Just 1 mph on the speedo.

few thanks mate thats not too bad

[glenboy]

I have 225/40/18,they're fine.......