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Wheels Lightweight/Track Summer Wheels & Tires

@tdervish
To answer your question, yes, 245/45 fit on 8,5x18 ET/IS 45, no problem. But! That combination won‘t fit on your Elantra. With ET50 you can fit 245/40 but by far no 245/45.
At 8,5x18 ET45 will be 235/40 the maximum with „no scrub guarantee“.
 
Flush as.....

View attachment 1006

SSR GTX01 18" * 8.5" ET44 Wheels are 5 mm further OUT on the inner rim, and 17mm further out on the outer rim. 17mm - 5mm = 12mm increased width. 8.8kg, so a reduction in rotational mass on each corner of about 4.7kg. A very good thing! See here:

http://hondaswap.com/threads/unsprung-weight-part-2.29058/

In particular: The use of light-weight alloys in wheels reduces rotational mass. This means that less energy will be required to accelerate the wheel. Given that each pound of rotational mass lost provides an equivalent performance gain as a 10 pound reduction in vehicle weight, the benefits of light alloy wheels on vehicle performance cannot be overlooked. For example: A reduction in the weight of the rim/tire assembly of 5lbs x 4 (all around the car) is equivalent to a 200lb weight reduction in vehicle weight (that's worth 0.200 in the 1/4 mile)

I have reduced my rotational mass by 4.5kg x 4 or 18kg, that's (according to the theory) equivalent to a weight saving of 180kgs (or nearly 400 lbs) from the "sprung" weight, like the chassis, interior, etc. It certainly feels a little more responsive, but no doubt, I want it to feel faster to justify my purchase. I knew I should have got a red car, they ALWAYS are faster!

I saw MPS Funjet had his wheels measured, and they machined his new wheels to ET43, so mine stick out 1mm less than his, but I do have 245/40 tyres, rather than 235/35.

As you can see in the picture, they are flush with the bodywork.

So by MY calculation (and don't take my word for it, have them measured..) if you are going aftermarket, and you want a flush fitting:

These are commonly available offsets....

8" ET38 absolute smallest offset 17mm more clearance inside, 17mm wider outside.
8" ET40 perfect 15mm more inside, 15mm wider outside (a couple of mm inside flush)
8" ET45 10mm more inside, 10 mm more outside, (5 mm inside of flush)
8" ET50 5 and 5, barely noticeable as compared to OEM wheels (a very safe fitting)

8.5" ET44 my fitment 5mm more inside, 17 mm wider outside.
8.5" ET49 same clearance inside, 12mm wider outside.
8.5" ET50 1mm less inside, 11mm wider outside. (I wouldn't think you want to lose any more clearance inside).

If I was recommending, I would try and get the RED offsets. If I could have got my wheels in ET49, I would have done so.

I doubt very much if you could get 9" wheels on the N, you would have to measure VERY carefully,

9" ET50 would give you 18mm wider outside, 1mm wider than mine, IMO the very maximum you can go without having the wheels protrude outside of the guards, but it would also give you 8mm LESS clearance on the inner rim, and I seriously doubt you have that much room.

I highly recommend the 18" downgrade. As you can see, the wheels don't look ridiculously small, the extra 2 - 2.5 cm of sidewall makes the ride a lot smoother. I couldn't use N mode before, because the hardest suspension setting had my teeth rattling, now it is still track firm, but much more compliant on bad roads (like every road in Qld). Although the P Zeros are supposedly good, I always felt like the sidewall collapsed a little on hard cornering, whereas the RE003s sidewall seems much firmer, it is a 97 XL load rating rather than a 91.

View attachment 1002View attachment 1003View attachment 1004

According to wheel-size.com you are running a 6mm positive scrub ratio. Have you noticed any negative effects on steering and handling from that?

Also, could you have run a 245/45 tire?
 
@tdervish
To answer your question, yes, 245/45 fit on 8,5x18 ET/IS 45, no problem. But! That combination won‘t fit on your Elantra. With ET50 you can fit 245/40 but by far no 245/45.
At 8,5x18 ET45 will be 235/40 the maximum with „no scrub guarantee“.

OK with ET50 I agree I can definitely do 245/40.

Shadow-Flo what about 245/45 on an 8x18 ET45 on the i30?
 
Also no way. Rolling circumference increases +9,5cm, diameter +3cm comparing to the factory 235/35 R19, or what is the OEM Elantra size? 225/40R18?
245/45 is just too much and has nothing to do with the IS/ET. 245/40 R18 is already taller but can fit with a high ET50 as the absolute maximum.
Why do you ask for 245/45?
 
Going to be really frank here; Enkei wheels are about as cheaply made cast aluminum wheels you can get. They're really cheap here in the US and their construction isn' that good. They're on the par with JMC/TMC OEM wheels. Enkei are also utilized on some cars as OEM wheels. :)

If I was going to spend $1732.00 Aussie Dollars, I'd be looking for something else.:)
 
Going to be really frank here; Enkei wheels are about as cheaply made cast aluminum wheels you can get. They're really cheap here in the US and their construction isn' that good. They're on the par with JMC/TMC OEM wheels. Enkei are also utilized on some cars as OEM wheels. :)

If I was going to spend $1732.00 Aussie Dollars, I'd be looking for something else.:)

Thats incorrect, but how about we agree to disagree.
 
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Reactions: Shadow-Flo
Don't need to agree that we disagree, mate. I see it one way and you see it another. The set posted, I can get for around $662.80.
That is because you don't have to pay the Australia tax. Even if you factor in freight to the bottom of the world we get ripped.
Everything is more expensive here and our dollar is around 0.70c USD :):cool:
 
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Reactions: Stug71
Don't need to agree that we disagree, mate. I see it one way and you see it another. The set posted, I can get for around $662.80.

Posted to you or posted to australia? thats $1000 here, i would definitey take a set for that.

As far as all my searching as gotten me, i dont believe there is a single set of wheels in australia in that size or a +50 for sale at the moment of any brand.
 
thoughts on these?
Forged wedsport is a fantastic wheel, just curious on thoughts regarding fitment. looking to run 245/40r18

 
thoughts on these?
Forged wedsport is a fantastic wheel, just curious on thoughts regarding fitment. looking to run 245/40r18

I have the old TC105N precessor. Amazing wheels!
 
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Reactions: digitalpeer
I found this interesting.. looks like some positive scrub is a good thing for track work

 
@N-psycho
No experience yet with these "BJ"-wheels😆
But when you're searching for lightweight and ten spokes you should have a look on Motec Ultralight and Tomason TN25. Both are much cheaper than the F2s and the Tomason is even lighter.
 
@Shadow-Flo
Thanks mate.
BJ wheels offered me €1200 for F2s including postage to ENGLAND.
Tomason TN25 is €1050. I am not sure if posting is included.
Both rims are good. Difficult to choose.