Changing tyre width on original rims?

[nick3814]

I'm going to need new fronts before the winter and I currently have 205/50 on 17" rims at the moment and I'm planning on matching the rears which are new Avon ZZ3's (255) for some reason the 205/50's are proving quite a few quid more than 225/45's (I've calculated the tyre wall height as a percentage of the width and theres nothing in it) so my question is would increasing the width by 20mm adversley effect the handling and would they fit the existing rim ok?

Not sure of my rim widths, I've measured when fitted from the inside to the outer rim, not the edge, and they appear to be 8" at the front and 9.5" rears.

I would appreciate your views and experiences!

 

[Diver944]

225/45s is the standard size for the front when on 17" wheels with 255/40 on the back (as standard on the 968CS) . As long as your front rims are wide enough and most tyre manufacturers will specify the width required.

This websites suggests 7" to 8.5" for 225/45/17

http://www.1010tires.com/TireSizeCalculator.asp

 

[944 man]

Further to that: the car was badly under-tyred on 205 fronts (with 245 / 255 rears).

 

[nick3814]

mmm, I bought the 17" rims with these fitted, replacing the rears as the originals were worn, and now when I look at them the fronts appear quite short across the width, the front face isn't as square to the rim as the rears if you know what I mean!!

Think thats made my mind up, get em changed []

Cheer chaps, on the ball as always []

 

[mik_ok]

ORIGINAL: Diver944

This websites suggests 7" to 8.5" for 225/45/17

http://www.1010tires.com/TireSizeCalculator.asp

As do Toyo for their T1-R.

 

[zcacogp]

ORIGINAL: nick3814

I'm going to need new fronts before the winter

Mate,

What are you talking about? It's the summer! Last night I knocked back half a jug of Pimms and fired up a barbeque! You don't need to be worrying about the winter when the sun is shining like it is now - the in-dash temerature display showed just over 27 degrees on the way home from work. In those temperatures you need to be thinking about summer-compound tyres to keep you stuck to the deliciously empty roads; none of this 'winter is coming' doom and gloom .... []

Winter indeed. Pah! []


Oli.

 

[Pastry]

ORIGINAL: zcacogp

ORIGINAL: nick3814

I'm going to need new fronts before the winter

Mate,

What are you talking about? It's the summer! Last night I knocked back half a jug of Pimms and fired up a barbeque! You don't need to be worrying about the winter when the sun is shining like it is now - the in-dash temerature display showed just over 27 degrees on the way home from work. In those temperatures you need to be thinking about summer-compound tyres to keep you stuck to the deliciously empty roads; none of this 'winter is coming' doom and gloom .... []

Winter indeed. Pah! []


Oli.

try living in scotland and staying that chipper ive forgotten what the sun looks like

 

[zcacogp]

ORIGINAL: Pastry
try living in scotland and staying that chipper ive forgotten what the sun looks like

You don't mean to say that it really is grim up north? (It's not true. I drove 'round Scotland in October a couple of years ago and I'm sure I turned the headlights off at least twice ... [] )


Oli.

 

[ashley]

We've had the central heating on three times during August!!!!

Nick give North eastern tyres in Middlesbrough a bell, unfortunately had to use them at the weekend, get club discount too (see 996 forum)