195/65/15 tyres on a stock 8valver?

[tweed]

Just copied and paced from a tyre specialist site


As a class, winter tires are slightly higher in profile than the average all-season tire, and for good reason: Winter weather makes for uneven road surfaces, whether it's chunks of ice or the potholes and pavement buckles that follow, and a taller sidewall can better absorb the shocks — isolating passengers while preventing wheel damage. It's not uncommon for winter tires to ride on wheels that are an inch or two smaller in diameter than the summer tires they replace. So long as the outer diameter, measured at the tire's tread surface, remains the same, the wheel can shrink as the sidewalls grow, and vice versa. To save money and eliminate the risk of damage to nicer rims, tire outlets often sell winter tires on cheap steel wheels, which also save the cost of remounting and balancing seasonal tires to the same four wheels twice a year.

So yes it a good idea to fit bigger winter tyres!

[tweed]

I can copy and paste and put on links to argue why bigger tyre walls are a good idea for winter tyres all night.


Why dont someone tell me its a bad idea to fit bigger walled winter tyres?

[Foreveryoungaus16v]

Don't question the wheel specialist!

[tweed]

Don't question the wheel specialist!

Haha I cant see why people are not saying put a big tyre wall on for winter. 

Its not for performance its for safety. The bigger wall will absorb pot holes curb bumbs when skidding on ice etc.

[boneybradley]

I run uniroyal ms7somethings in 195/50 and they were £50 a corner from camskills

that post says run some like 165/65's on a smaller (13 or 14 rim) rather than 195/50 on 15's like mine but 15's are the smallest that fir gti mk3's

so 195'50 is the only proper choice

[tweed]

Yes it does say fit a smaller rim but we aint all fortunate enough to be able to afford another set of wheels.

However it still says fit bigger sideways. So bigger side walls are better regardless off wheel size.

[itavaltalainen]

195 65 15 is way too big in diameter, hence not covered in the EC paperwork for car => mod. and you pay for mods with most insurance companies.

this got nothing to do with winter tyres as such, just they are not on the EC certification papers for cars.

yes you can fit other wheels if rolling diameter is within 5% of original wheels, which i doubt very much would be the case if 195 50 15 are meant to be fitted and you fit 195 65 15 - their side wall is 15! % (absolute not relative) higher, which makes the rolling diameter approx 15%* larger. this will cause your gears to become 'longer' i.e. gearing them up but more importantly get the speedo tolerance out of spec (you will go faster than speedo shows).

* actually even more since 65/50 - 1 =30(!!!)% i.e. >>> 15%

[itavaltalainen]

what tweed says is somewhat correct, what the website he references has not said is that this (i.e. higher sidewall) is normally achieved within 5% of rolling diameter.
how? you fit slimmer tyres with higher aspect ratios, e.g. 185 60 14 winter instead of 195 50 14 summer....

[tweed]

 

They aint that big I have 195/65/15 winters tyres on my van. Ill take some pics in the morning with a tape measure to show the difference.

[tweed]

And what are you on about 195 65 15 tyres not covered for cars.
Thats a standard size car tyre.

Renault scenic for example. 

So how can one car be covered but a golf aint?