225/45/18 vs 225/55/18 is there much difference?

[DrR]

Need some winter tyres.

car comes with 225/45/18, is a 225/55/18 much different?

 

[Wick]

Bigger rolling radius but not uncommon to fir larger tyres, particularly winters.

The 55 is a % of the tyre width indicated in the tyre profile.

So a 225 tyre with a 55 profile is 12.4cm from the rim to the tread vs 10.1cm.

You can then convert the rim width to cm and calculate the rolling circumference using pi.

 

[Scrooge]

On the back of mine I went from 225/40/18 to 235/45/18 and I f**king hate how chunky the sidewall looks!

 

[Lal B3N]

Also have a look at 225/40/18.

 

[SC03OTT]

Would you not be cheaper to buy a 'wheel and tyre' package from somewhere like http://www.mytyres.co.uk/ . Go down to a 16" steel. I just checked for me and an 18" tyre is £147 or I can get a 16" steel wheel and tyre for £130.

 

[DrR]

So i'd be ok to swap to those tyres?

Seen a full set, albeit second hand for about £200. Will only be used for this winter then sold, so not to bothered about keeping them.

 

[Lal B3N]

Yeah should be fine.

Usually only thing it does is throw the speedo out by under reading or over reading.

Usually theres a sticker on the car or in the handbook that tells you what the winter size is as 9 times out of 10 its different to the actual summer tyre size anyway.

 

[MarkCup]

http://www.rimsntires.com/specs.jsp

There's a great easy to use tyre size/rim size/offset etc. comparison on that link ^^^

 

[plymcl172]

what car do you have? if its a Seat why the pic of the Clio- confusing....

was going to try help you

 

[DrR]

Fair one actually, should probably change that. Leon FR.

Oh well said i'm having them, now, oddly they come with a free set of Mitubushi Outlander lights lol