Buying a new car 15 or 16" Alloys

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Yer alot of people don't seem to know. It comes down to a couple of things. 1. The larger rim is normally heavier.2. Due to the rim having a larger diameter the the weight is distributed further from the center of the wheel. This increases the centrifugal force that is generated as it spins. It works on leverage. Think of holding 1kg with your arm outstretched. It feels alot heavier then if you hold the 1kg next to your body. As the force generated is higher it means the brakes have to overcome this extra force, meaning increased braking distance. It's hard to explain. Hopefully that makes sense.
Also with stiffer side Walls on lower profile tyres, they don't balloon out under increased load (braking) effectively decreasing contact patch of rubber over standard.
 
go 16's, and if you insurance check to see if there is a difference between 15-16 with insure company my insure asks me tons of questions !!

if you like Rims check out mine on profile - albums on here my trike and F250 all have top rims !!
 
Won't be an issue with insurance if it's a factory option. If you go wider or larger diameter in rim or tyre/rim combo is where some insurance companies have an issue. Ie my bommodore factory was 15's option on this model were 16's. However on the sv6 etc 17's were standard with sAme suspension as mine. My insurance company treats the 17's as a factory option on my vehicle
 
Yesterday I was at the lights next to a 4X4 late model Toyota Hilux sitting on 24" rims,all I thought was if he crashes and writes off he will throw about $50,000 because the insurance would be void
 
A smaller overall diameter of the wheel will give you better exceleration but a lower top speed but a larger wheel will give you less acceleration and a higher top speed!

However, its all related to the rolling diametre. The 15s and 16s both have the same rolling diameter on the i20 as the larger rim just has reduced tyre profiles. Therefore the differences would be minimal. But the car would probably ride slightly better at high speed.
 
This thread is so funny. Yeah maybe a larger rim is going to mess with the breaking of a little huyundai with a one pot calliper that belongs on a mountain bike, but larger rims equate to larger tyres which put more rubber on the road.If you've got 225's or larger you don't need to worry about the tyres ballooning under braking. Larger tires also won't balloon as much at high speed, leaving the majority of the tread on the road.If large rims really did decrease performance, they wouldn't put them on cars. There is a limit though, and 18" rim is the max I'd put on my car, and that definitely depends on the type of car it is, because they can be too big. Good luck with the car, it should be a reliable little rig. A friend of mine bought a brand new i20 recently. Nice little run around car, but the seats were like a park bench. She got a 3 year warranty with hers. I personally wouldn't drive one but I'm not interested in fuel economy :p
 
This thread is so funny. Yeah maybe a larger rim is going to mess with the breaking of a little huyundai with a one pot calliper that belongs on a mountain bike, but larger rims equate to larger tyres which put more rubber on the road.If you've got 225's or larger you don't need to worry about the tyres ballooning under braking. Larger tires also won't balloon as much at high speed, leaving the majority of the tread on the road.If large rims really did decrease performance, they wouldn't put them on cars. There is a limit though, and 18" rim is the max I'd put on my car, and that definitely depends on the type of car it is, because they can be too big. Good luck with the car, it should be a reliable little rig. A friend of mine bought a brand new i20 recently. Nice little run around car, but the seats were like a park bench. She got a 3 year warranty with hers. I personally wouldn't drive one but I'm not interested in fuel economy :p

No idea what you said about breaking but it comes with 4channel/sensors ABS with electronic breakforce Destrib, and ESC with TCS means nothing to me but sounds safe!

And 6 airbags :) as long as I stop when I see a gecko at 60kms at hour at night i'll be happy. Which it's younger brother the Getz does
 
I'm guessing you've never tried to fight an insurance claim when you have had larger than factory option wheels/tyres on a vehicle. They will drag every scenario up. You are obviously an expert on everything so I will let wat you say be gospel.
 
I'm guessing you've never tried to fight an insurance claim when you have had larger than factory option wheels/tyres on a vehicle. They will drag every scenario up. You are obviously an expert on everything so I will let wat you say be gospel.

They are both standard on the model it just depends which option set I go for.

Keiths going to be well jealous!

yes he is :) but it's a manual so he can't drive it
 
Speedo might also be affected but if factory should be ok.
 
Yesterday I was at the lights next to a 4X4 late model Toyota Hilux sitting on 24" rims,all I thought was if he crashes and writes off he will throw about $50,000 because the insurance would be void

As long as the load rating is acceptable and they are declared to the insurance provider, then some companies will insure. Certainly makes finding a company harder. And premiums will be'premium'. But can be done.... anyone ever looking at putting any wheels on their car should always investigate insurance before commiting to the rims. Shannons are good for insuring cars out of the ordinary, or cars with mods. Ive got everything with them and found them to be extremely competitive.

Irrespective of that... it appears the conversation has gone slightly off topic lol

Speedo might also be affected but if factory should be ok.

A lot of the time the difference is little to none. When you get a bigger diameter rim, the tyre profile is lower.... so overall the diameter probably hasnt altered too much. Not enough to throw things out too much.
 
They are both standard on the model it just depends which option set I go for.yes he is :) but it's a manual so he can't drive it
Sorry gillsy my comment wasn't directed towards you. For some reason the quote didn't appear. If they will throw em in then y not. Hyundai have come a long way since their excel days
 
This thread is so funny. Yeah maybe a larger rim is going to mess with the breaking of a little huyundai with a one pot calliper that belongs on a mountain bike, but larger rims equate to larger tyres which put more rubber on the road.If you've got 225's or larger you don't need to worry about the tyres ballooning under braking. Larger tires also won't balloon as much at high speed, leaving the majority of the tread on the road.If large rims really did decrease performance, they wouldn't put them on cars.

Who said they were wider? But yes of course it makes a difference to performance. Head out to the track and see how many cars have big rims.
 
As long as you declare what modifications are on the car, and the insurance company has all that info and agrees then you're fine, Dangles. I had 17"s on my ute that came stock with 14"s and as part of the insurance process they ask you about what wheels are on your car. Mine was fine.A huyundai i20 doesn't need TCS lol.

Who said they were wider? But yes of course it makes a difference to performance. Head out to the track and see how many cars have big rims.
Who said thy were wider? Lmao... Show me a 5.5" wide rim in 18"? SureYou may surprise me and find one, but larger rims are generally at least 8" wide. This equates to a wider tyre size, which is why is used 225 as a reference. It's nowhere near as wide as tyres can go, but it's a comfortable size on a 17" or 18" rim for the road.
 
Who said thy were wider? Lmao... Show me a 5.5" wide rim in 18"? SureYou may surprise me and find one, but larger rims are generally at least 8" wide. This equates to a wider tyre size, which is why is used 225 as a reference. It's nowhere near as wide as tyres can go, but it's a comfortable size on a 17" or 18" rim for the road.

Thought we were talking 15 and 16s ;) and yes I know what size you can get (I have 225's on 15inch rims and without weighing ridiculous amounts... like 17/18s would) but that doesn't mean its a good idea and it certainly does affect performance and more importantly tyre choice.
 
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Yer alot of people don't seem to know. It comes down to a couple of things.
1. The larger rim is normally heavier.
2. Due to the rim having a larger diameter the the weight is distributed further from the center of the wheel. This increases the centrifugal force that is generated as it spins. It works on leverage. Think of holding 1kg with your arm outstretched. It feels alot heavier then if you hold the 1kg next to your body. As the force generated is higher it means the brakes have to overcome this extra force, meaning increased braking distance.

It's hard to explain. Hopefully that makes sense.

What the hell are you smokin lad, that's a complete load of crap. Why aren't we still driving around on 13 and 14" wheels then?
 
^^^^ this. You don't see any real drivers car coming off the floor with small rims.
 
Mate it's simple physics. Do a goggle search if you don't believe my. It may only intense the braking distance slightly but it still makes a difference.
 
This ^^ is also true. But the thing is, any poor effects from a large rim is negated by the positives as long as the cars equipped with the stopping power and not a one pot caliper lol. A larger rim can put more power to the ground, and aid in braking as long as the set up is right. Show me a car with 4+ pot callipers with 18"s and 245's and then put some 14" rims with 175's and see if it stops as well.
 
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