Adriank

Has anyone tried either of these sizes? My front tyres are quite scrubbed out on the insides so new ones looming...

Have read about the benefits of wider front tyres has anyone tried them on the OEM 17's? Any thoughts welcome.

The tires I'm looking at don't come in 215/45/17 only the 2 sizes above but do come in 245/40/17 for the rear.

r8byb

Niether will work. 215/40 has a sidewalk height with an overall radius difference of about 10-11mm and 225/45 the same but bigger rathr than smaller.

The perfect match for a 215/40 would be a 245/35 in the rear, then the rolling radius is pretty much equal.

Hope this helps

Dembo

The difference in profile between 225/45 and the standard 215/45 is 4.5mm. Obviously there's a small extra chance of rubbing if lowered, but they will "work". I'm skeptical about any benefit from wider tyres though.

punchdrunk

I've tried 205/40, 215/45 and 225/45

205/40 is under tyred and induces oversteer
215/45 is good for turn in and is perhaps more neutral than others with 245/40 rears
225/45 has better grip, looks better with a more aggressive stance, but has less steering feel.

On 245/40 rears 215/45's are recommended although 225's will work.

GavB

At next change I will be trying 225/45 front and 255/40 rear.

As dembo said, only a 4.5mm difference on the radius for the fronts, and 4mm for the rear, your radius changes more than this just by tyre wear, so that doesn't bother me.

Adriank

Agree gav I'm not bothered by the small radius change either way.

I'm looking at Yokohama advan neova AD08's all round any opinions on if these are useable as a street / track day tire in the uk?

Or in honesty is it best to stick to a plain road tire?

The Loon

MB is using the Yokos for track day use.

r8byb

You need to keep the radius as equal as possible but it's your car. If one wheel is turning quicker than the other it will mess with abs and vss of you have it

Adriank

Am also tempted by bridgestone re050a in 225/45/17 front 255/40/17 rear as they are not only cheaper than the oem size re050 but meant to be better in the wet.

Opinions?

r8byb

That would be a much better option as the rolling radius is i similar.

I'm not saying it won't work in previous posts, i am saying it would have a negative effect in a few areas and no real positive gain.

The sizes above would be good and offer more outright grip than the standard fitting tyres, although you will loose a little steering feel with that width tyre up front, but nothing to be a concern.

Do you really want to stick to bridgestones?

I've tried contis, goodyears, michelins and every other pretty much available (ask Paul J)

And from generally 5000 miles on each set Michelin are the best outright and conti's a close second, i've always found bridgestones fantastic in the dry, but not really anymore than Ok in the wet.