your 195/60/14 tyres are already 'wrong' - they should be 195/65/14 to give rolling diameter of 606... but it doesn't matter; the previous owner has put slightly 'smaller' tyres on - your speedo will read slightly out.muleskinner wrote:oh for the love of god..... i am totally f**ked up now.
The current wheels I have on my e30 are 195/60/14 with a rolling dia of 590.
does this mean that I need to try and get me new wheels as close to this figure as possible , but is that possible?
if i go for 205/45/17 this gives me a rolling dia of 616.....
is that difference in figure ( ie 616 as oppossed to 590 ) going to be ok. will this slow my car down due to the increased dia.
cheers
mule
don't forget, new tyres have 7mm of tread depth, therefore once the tyres are bald, your rolling diameter has reduced by nearly 14mm
But you can have rubbing issues if you put 'bigger' tyres on - i.e. the 225/45/17s
the E30 was designed for around 606-609mm, so 616mm won't matter, but as has been said already, the bigger tyres 225/45/17 at 634mm when the car is lowered do rub....
good luck anway getting your money back
the front rubbed the arch with the ET20 and needed 3mm spacers with the ET38 to clear the standard caliper and strut casing.
