Hi.

I just bought my first Hyundai and got it with Winter tyres, but am lokking for some summer Wheels right now.
I am thinking about putting 17x7 Wheels on my 2012 i30 hatch.
But i Wonder how it will effetct comfort and fuel efficiency, has anyone any experiences regarding this?

/Jakob

[Asterix]

Hej Jakob, Welcome to this great forum and congrats with your new car.

17" wheels will affect your economy, but I don't know how much.

It will also change the comfort, but maybe you'll like it better with the 17". It will propably improve the handling.

Maybe there's a dealer near you with a showcar you can try with 17" wheels..

[flydon]

We have 17 in wheels on our GT (I30) similar to the ones on our previous 2011 Elantra Limited.
In my younger years,(we are now 73 years old) I would have probably liked the 17s, but now I would rather have the comfort of more air in my tires.
They are supposed to be Low Rolling Resistance, whatever that means, but seeing that the diameter of the tread is the same ,or similar with the 15 or 16in wheels, I figure the mileage is probably the same.
Don

[Asterix]

Hi Jakob

This is from the kiamotors.dk website regarding the Ceed.

As you can see there's a significant difference between 15" wheels and 17"

Dækstr. Active/Active Plus    195/65R15    27,0 km/l  3,7 l/100 km
Dækstr. Premium       205/55R16    26,3 km/l  3,8 l/100 km
Dækstr. Premium Plus    225/45R/17   23,3 km/l  4,3 l/100 km

Hi Jakob

This is from the kiamotors.dk website regarding the Ceed.

As you can see there's a significant difference between 15" wheels and 17"

Dækstr. Active/Active Plus    195/65R15    27,0 km/l  3,7 l/100 km
Dækstr. Premium       205/55R16    26,3 km/l  3,8 l/100 km
Dækstr. Premium Plus    225/45R/17   23,3 km/l  4,3 l/100 km

Hmm thats almost 10 percent. The case is that I have a set of brand new continental sport contact 5 225/45 17 in the garage. So i wonder about using those for the i30, instead of selling them. I am not so worried about the economy though, to me it will mean 150 Dkr pr month, thats bearable. Right now I can not get it below 5L/100 km anyway. I am more worried about the comfort of the ride.

[Asterix]

Your local dealer have a demo with 17" wheels. Why not go for a testdrive...

http://www.hyundai.dk/se-biler/brugte-biler.aspx

Your local dealer have a demo with 17" wheels. Why not go for a testdrive...

http://www.hyundai.dk/se-biler/brugte-biler.aspx

Thanx, I'll do that.

[Dazzler]

Hi Jakob

This is from the kiamotors.dk website regarding the Ceed.

As you can see there's a significant difference between 15" wheels and 17"

Dækstr. Active/Active Plus    195/65R15    27,0 km/l  3,7 l/100 km
Dækstr. Premium       205/55R16    26,3 km/l  3,8 l/100 km
Dækstr. Premium Plus    225/45R/17   23,3 km/l  4,3 l/100 km

Interesting observation Asterix.. I can't see how the tyre profile would effect the economy except slightly maybe due to the wind resistance caused by the extra width (I think some of the difference would be due to the extra weight of the higher level model due to extra soundproofing and extra goodies) 

We have 17 in wheels on our GT (I30) similar to the ones on our previous 2011 Elantra Limited.
In my younger years,(we are now 73 years old) I would have probably liked the 17s, but now I would rather have the comfort of more air in my tires.
They are supposed to be Low Rolling Resistance, whatever that means, but seeing that the diameter of the tread is the same ,or similar with the 15 or 16in wheels, I figure the mileage is probably the same.
Don

Just a young bloke then .. Alan Ho is 75 and Terry Traveller? is 80 I think...

Low rolling resistance tyres tend to have stiffer sidewalls and often silica modified rubber etc.. so they roll more freely (create less drag) I think it is clever technology because they still have to give good grip when driving in the wet and when braking 

I can see/feel the difference in my current and previous Hybrid Camrys with low rolling resistance tyres... they barely slow down on level ground when I back off on the accelerator 

[Surferdude]

I'm with Dazz here. I can only assume the difference in fuel economy is down to other factors as the difference in gearing is minimal.
Those tyres would be great but could someone confirm they are the right size? I had 215/45R17 in my head for some reason. Haven't got time right now to go check but if no-one else has the answer, I'll look later.
My only concern is sidewall clearance on lock.

[Asterix]

I would think that the wider the tyre is, the greater the rolling resistance is.

There's only 30 kg difference between base model and highest spec. but I've also read somewhere that for every 100 kg you add to the cars weight, then you increase the consumption by  ca 4 %.

[AlanHo]

I had 17" wheels on my previous i30 and 16" wheels on the current one. The difference in comfort and road noise is very obvious and I would never go back to 17" wheels again.

[Asterix]

195/65-15 = 1937 mm

205/55-16 = 1928 mm

225/45-17 = 1934 mm

215/45-17 = 1909 mm

Found on this Danish website, but I'm sure you will be able to understand

http://www.akselsonne.dk/fritid/rally/daektabel.htm

[flydon]

If you want to comparetire sizes, here is a link  http://www.miata.net/garage/tirecalc.html
Al

I had 17" wheels on my previous i30 and 16" wheels on the current one. The difference in comfort and road noise is very obvious and I would never go back to 17" wheels again.

Alan, That is kind of what I thought, that the 16s would be a softer ride, not so much of a rectum wrecker.
Don

[h2Olondon]

Interested in winter tyres for my i30 2011 model now I am living in ne england. Have U done any driving on ice / snow in your winter set up?
What rims  / tyres have you got. For summer driving in uk we get 16 in rims with 205  by 55 ratio. I find this fairly bumpy on poor roads so i would not recommend larger rims and lower ratio tyres. As you know low profile tyes wear much faster and rims get damaged on pot holes!!!
Good luck