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My old 2 at different sizes to that. Their arrowspeed, they a good tire? Before I use to have T1R proxies, which ones are best?[/list]@ 1bar (320bhp after re-map soon...) 
@ 1bar (320bhp after re-map soon...) Though I'd guess your mismatch on profiles wasn't a factor in the crash you really want the fronts larger or same size profile than the rears, not the other way round 
@ 1bar (320bhp after re-map soon...) Depending on what it says yes 235 or 245 might fit but I would suspect you have same size wheels all round so 245 will be too wide+47- may be model no?
@ 1bar (320bhp after re-map soon...)= 17 inch diameter, 7 inch wide. A 225 will start to "bulge" on the sidewalls, let alone a 235.Slarty wrote:
When you turn in hard you can feel the car first start to lean on the tyre, then you feel the car start to slide. It's progressive and communicative. Only problem is I already now have 235/40/17s on the back, is that going to cause a problem? They are the new Eagle F1 Asymetric 2 ones though so hopefully they can take the strain? 
@ 1bar (320bhp after re-map soon...) I reckon your fronts wheels are OK but the rears ideally need to be wider by an inch... the wheel & tyre bible reckons a 7.5" min for a 225/40/17 though as others have stated wider tyres can be run but you probably won't ever hear from those with a bad experience of this since most likely they're not about anymore. Tyres are matched to rim sizes for a reason. When they're stretched on a wide rim the tyre wall is quite straight and so doesn't deform much under load (cornering) which helps steering response but adversely effects comfort. On a narrow rim the tyre is pinched which curves the sidewall. A curved sidewall will flex more thus exhibiting the opposite characteristics to the straight one.... Higher fuel consumption too. At the moment the facing side of your fronts sit further out than standard (about 10mm) whilst the rears sit 2mm further in (same 7" width as standard but with a 2mmm higher offset, 47 compared to 45). Yeah im getting the rears changed to 225/45/17 tomorrow, that should be fine though? They dont have any 225/40/17's...@ 1bar (320bhp after re-map soon...)@ 1bar (320bhp after re-map soon...)dellams wrote:ok cool, but 225/45/17 is legal and safe and will handle well?
You should be fine @ 1bar (320bhp after re-map soon...)..the roads in rural Esex are not the smoothest and occasionally you tend to find the odd cave in the road...so I have 245/40/17 on the back and 215/40/17 on the front...the car sits at least an inch higher than it did when I bought it but once all 4 wheels were aligned, camber, toe etc...it handles as sweet as a nut...absolutely awsome tyre, like driving around on toffee apples...but not much change from a big one once fitted and fettled...so this year I have slapped on a set of Falken 452's, half the price...obviously less performance/grip...but still a popular choice within the community so i thought I'd give 'em a go.