Max tyre width on o/e 16's.

[Otter]

hey there:smile:

I know thar the standard alloys on my99 impreza are 16x7. I currently have 205/45/16s on and I think the previuos size was 205/55?/16.
Can somebody please tell me whether it feasable to put on either 215/45 or 225/45 on the 7 inch rim and is it safe to do so.
Also just to add, when i was having my tyres changed at a freinds garage, he said my rims were more 7.5" than 7":confused:

Thanks in advance for any help:biggrin:

Andy.

[scoobyDAZZA]

standard is 205/50 for 16s . . . .

if you fit a wider tyre then you need a more profile tyre ie 215/45 to keep a more similar rolling radius.
i went from 205/45/17 to a 215/40/17
the middle number is the height of the side-wall, a percentage of the width so on a 215 width it would be slightly higher than on a 205

try a 215/45

[Somerset Scooby]

This is a useful site for calculating tyre sizes http://www.miata.net/garage/tirecalcold.html

[Otter]

standard is 205/50 for 16s . . . .

if you fit a wider tyre then you need a more profile tyre ie 215/45 to keep a more similar rolling radius.
i went from 205/45/17 to a 215/40/17
the middle number is the height of the side-wall, a percentage of the width so on a 215 width it would be slightly higher than on a 205

try a 215/45

Yep, I understand the meaning of the dimensions on the side of the wheel and am not fussed about rolling radius (thats why I chose 205/45/16:smile:)

However, what I was after was a Yes or No as to whether a 225 width tyre will fit onto the 7" rim.

Someone to confirm please, thank you

[Agent Smith]

you might be able to get away with it.....depending on which brand of tyre yuor goin for.....due to the stiffness of the walls....if required i'll ring 1 of my contacts in the morn....

[bob]

Had 225's on 7.5 rims but they did rub when anyone was in the back or giving it some round haynes. Think 215's are the best bet on a classic..Don't think 225's will go on anyway with STD suspension I had coilovers.

[Otter]

Scoobtastic you're a legend:smile: Thank you very much! I'll wait in anticipation
The tyres are DUNLOP SP SPORT FORMULA-R in 225/45/16.

Bob, I've got Apexi N1 coilovers and they are extremely hard....so I think I should be fine :smile:

[bob]

Scoobtastic you're a legend:smile: Thank you very much! I'll wait in anticipation
The tyres are DUNLOP SP SPORT FORMULA-R in 225/45/16.

Bob, I've got Apexi N1 coilovers and they are extremely hard....so I think I should be fine :smile:

Coilovers are OK the STD stuff has massive springs sitting in a flared ring the arch on this flared rim hits the tyres when going to 225's. As I said the 225's do tend to rub when weight is in the car or giving it welly.. They did not rub across Exmoor but did at Haynes.

[Otter]

Just an quick update.....

to say that i've got two dunlop D01J's in 225/45/16 and have had no problems whatsoever with them. They look a bit chunky on the standard rim (well they are 225 wide aren't they:rolleyes1: :biggrin: ) but they stick like perverbial @*&% in the dry:cool:

Andy.