225 40 18 rims

[keith-vznby]

Hi, Have fancy to go to 18s on my Chimaera does anyone know of any for sale cheers Keith

[ukdj]

Your choice will be severely limited if still using the original 4 stud hubs / pcd.

So you will need to change the hubs/brakes to 5 stud to be able to run something modern which can hike the price of the upgrade somewhat.

[QBee]

The rear wheels will be no problem - I have had 18 inch 4stud rears on my car for some time now, as my set of Silverstone SP12s is 17 front and 18 rear. They were running 235/40 18 R888s, which were fine with the ride height high enough to keep them off the wheel arches on hard cornering or compressions.

But you might struggle with the fronts catching, as 18 inch fronts will leave you with very low profile front tyres to avoid catching, which in turn may compromise both the appearance and the ride quality, and ultimately the handling.

If you are ordering new from somewhere like ACT or Team Dynamics, then you can get what you want, just remember to order the correct rim width to suit the tyre width you are going to use, which may mean having different width fronts and rears. But as Paul says, and in my experience too, 4 stud 18 inch wheels almost never appear on EBay.

You are welcome to come and look at mine, it has the 17/18 combo on right now.

[QBee]

Two pictures speak 2000 words:

Rear, SP12 225/40 18 Toyo R1R. Nice clearance, no catching



Front, SP12 225/45 17 Toyo R1R. Catching on the back of the headlight access panel on nearly full steering lock, both directions.
225/45 17 is 3mm smaller diameter than 225/40 18. Both sets of tyres are new.

[QBee]

PS, I store the car upside down for the winter, obviously.

[Bassfiend229hp]

QBee said:

PS, I store the car upside down for the winter, obviously.

We love your grasp of technology ... thank God you don't have to do anything with numbers and - maybe - computers - like accountancy...

Px

[QBee]

Bassfiend229hp said:

QBee said:

PS, I store the car upside down for the winter, obviously.

We love your grasp of technology ... thank God you don't have to do anything with numbers and - maybe - computers - like accountancy...

Px

Thank you Phil, most kind of you! As you say, good job I'm not.....a doctor. That was what i started to train as, then realised that I couldn't remember medical facts because they didn't interest me. Never could tell my arse from my elbow.....so I changed to a subject that did interest me, accountancy. But I started training in the days before calculators, computers and mobile phones, so it's no surprise when I cannot master technology.
Actually, I do understand this technology, and when Thumbsnap turns the Iphone picture sideways or upside down I usually correct it by editing the photo and re-saving it....today I was a teenager again, so couldn't be arsed.....

[OleVix]

QBee said:

Two pictures speak 2000 words:

Rear, SP12 225/40 18 Toyo R1R. Nice clearance, no catching



Front, SP12 225/45 17 Toyo R1R. Catching on the back of the headlight access panel on nearly full steering lock, both directions.
225/45 17 is 3mm smaller diameter than 225/40 18. Both sets of tyres are new.

Qbee, the fronts catching is not so strange since chims/griffs usually have smaller wheels in the front, like 215/40r17 would clear... ideally 225/40r17 but that doesnt exist

[QBee]

Yes, Ole, I took a risk, as I have never gone larger than 215/45 17 before. The risk is not too bad - they only catch on full lock, and I might be able to raise the ride height both front and rear and get around it that way. Also, they only just catch, so when the tyres have worn a bit there is also hope that they won't catch. Spacers did not help, however.

As you say, R1R sizes are limited, and I already had the rear tyres, so it was worth a try.

My track tyres are 215/45 17 all four wheels, so I need to adjust the ride heights anyway to get the rake back, as previously I have always had larger rears than fronts. The racers tend to use same size all round, I believe, so I am not too bothered..
Why did I choose those? I already knew my R1Rs were going to be same diameter front and rear, so wanted my track tyres to be similar, and I saw the Yoko A048s on EBay, virtually unused and 20 miles from me, for £300 the set. Normal price new is £960. No brainer once I had inspected them.