Rim & Tyre Sizes for Chim 500
Discussion
Nope - front tyres are correct size for an early car, but not the correct speed rating
Rear tyres are correct size for a later car and the right speed rating
I'd haggle to allow for replacement of the fronts (205/55/15 with a ZR or W rating).
Out of interest - what is/are the brand(s)/type(s) of tyres?
[edit] now that I think of it, should a 500 not have 225/50 fronts and 245 section rears - or was that optional? Personally I'd go for the narrower tyres anyway. [/edit]
Rear tyres are correct size for a later car and the right speed rating
I'd haggle to allow for replacement of the fronts (205/55/15 with a ZR or W rating).
Out of interest - what is/are the brand(s)/type(s) of tyres?
[edit] now that I think of it, should a 500 not have 225/50 fronts and 245 section rears - or was that optional? Personally I'd go for the narrower tyres anyway. [/edit]
Edited by 900T-R on Friday 11th January 06:43
2 Reasons:
- The wider front tyres do offer more (dry) grip at the expense of steering feel.
- Generally, with a car like this I gladly sacrifice ultimate dry grip for a bit more progression in the wet. There's a reason the 400+ bhp Marcoses sat on 225 section rear tyres - they wanted to make the car driveable and progressive in all weathers and also near the limit, which IMO is the way to go for a sports tourer like the Chimaera. If I wanted an out and out track car, I'd have chosen something different.
As said, it's mostly a matter of personal preference anyway.
- The wider front tyres do offer more (dry) grip at the expense of steering feel.
- Generally, with a car like this I gladly sacrifice ultimate dry grip for a bit more progression in the wet. There's a reason the 400+ bhp Marcoses sat on 225 section rear tyres - they wanted to make the car driveable and progressive in all weathers and also near the limit, which IMO is the way to go for a sports tourer like the Chimaera. If I wanted an out and out track car, I'd have chosen something different.
As said, it's mostly a matter of personal preference anyway.

Edited by 900T-R on Friday 11th January 09:04
Owner's manual says:
205/55 ZR 15" front (225/50 15" for Chimaera 500 with PAS)
225/50 ZR 16" rear.
You might struggle to find 'Z' rated 15" tyres, most insurance companies will allow fitting of 'V' rated tyres as long as you inform them.
Original specification was for Bridgestone S02 Pole Position, no longer manufactured.
205/55 ZR 15" front (225/50 15" for Chimaera 500 with PAS)
225/50 ZR 16" rear.
You might struggle to find 'Z' rated 15" tyres, most insurance companies will allow fitting of 'V' rated tyres as long as you inform them.
Original specification was for Bridgestone S02 Pole Position, no longer manufactured.
Hi Paul
I have recently bought a Chim 4.0 and have exactly the same spec as you mention , Some makes dont do the 205 in a ZR only a VR
I ran it past my insuranace company and they stated there was absolutely no problem as long as I didnt have an accident caused by the tyres whilst going over the fitted spec ( V 149 MPH ) very Unlikely
I have asked them to put this in my notes on the policy rather that just a verbal.
I didnt fit them but they are nearly new Pirelli s and had only done 1K miles . Not my choice
Trevor
I have recently bought a Chim 4.0 and have exactly the same spec as you mention , Some makes dont do the 205 in a ZR only a VR
I ran it past my insuranace company and they stated there was absolutely no problem as long as I didnt have an accident caused by the tyres whilst going over the fitted spec ( V 149 MPH ) very Unlikely
I have asked them to put this in my notes on the policy rather that just a verbal.
I didnt fit them but they are nearly new Pirelli s and had only done 1K miles . Not my choice
Trevor
900T-R said:
raceboy said:
Isn't the front tyre size dependent on whether the car has PAS or not? 
Could well be - but then again I don't remember any cars that came with a 205 (front) /245 (rear) combination from the factory...

Edited by RichB on Friday 11th January 17:37
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