Tony Harrington

iTrader: (8)

I am running 215/45/17 tyres on standard WRX rims.

Can I increase the width of the tyre when I change them say for 225 or 235. If so what are the advantages & dangers of going wider?

wrx9181

iTrader: (2)

Just more grip as larger surface area
In the dry I'm sure wet and snow and it all changers

Saalro

iTrader: (8)

Not always more grip, depends if the tyre increase allows the tyre to perform at optimum temp, if the tyre can't get the heat then it won't perform, but if it gets to much heat it also won't perform!
Just a little something to think about lol, but i think that's more track talk.

You may notice a difference, you may not, trail and error really. Why not try top end tyres if you aren't already.

You might also find the tyres rub.

Thanks

TonyBurns

iTrader: (3)

Its pro's and con's, normally more con's than pro's as these are optimised for the car, but you may get more dry weather grip, may make wet weather grip worse and will cause more issues in snow/ice, also more drag which means higher fuel consumption and less power to the wheels.

Tony

dunx

iTrader: (3)

I sold a set of 225 Toyo's to a pal, and he reckoned he had more rear grip in the wet on his WRX.

HTH

dunx

P.S. Most tyres fit a range of rim widths, i.e. 7 to 8 inches with 7.5 being the recommended size.

dangerous brain

With tyres you ought to go with the same size as the rim demands. If you stretch a tyre or go the other way you are affecting the loads going through the sidewalls of the tyre. The tyre is designed to take loads similar to those of correct fitment. Of course they will have in-built safety margins but they won't have the efficiency they should have. The further away you get from the design parameters the more performance and or safety you will lose. Going up or down a profile or width shouldn't cause you many problems but when you start going 2 or 3 in any direction you start getting into iffy territory.

Tony Harrington

iTrader: (8)

That is helpful advice mate.