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      05-07-2008, 01:20 PM   #1
DervFan
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Tyre Question

Dumb newbie question of the evening # 1

If I want to move to non-RFTs, do I have to swap all four at the same time? or can I just swap a pair at a time ? eg: my rears are spent and I need to change them.

I'm also chuffed off with the ride on RFTs, feels like I'm constanly driving on tram rails or get misdirected when the road has any adverse camber.

I suspect that I'll have to swap all four, I'm just trying to minimise cost at the mo.

Any advice?
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      05-07-2008, 01:24 PM   #2
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Quote:
Originally Posted by DervFan View Post
Dumb newbie question of the evening # 1

If I want to move to non-RFTs, do I have to swap all four at the same time? or can I just swap a pair at a time ? eg: my rears are spent and I need to change them.

I'm also chuffed off with the ride on RFTs, feels like I'm constanly driving on tram rails or get misdirected when the road has any adverse camber.

I suspect that I'll have to swap all four, I'm just trying to minimise cost at the mo.

Any advice?
1. Mixing RFT and non RFT tyres would be dangerous.

2. Are you sure that the RFT's are the source of the tram railing / camber problems? I don't get this with my tyres. How are the pressures / wear?
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      05-07-2008, 01:25 PM   #3
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i wouldnt recommend changing unless doing all four, it may even make the handling worse-unpredictable, that said i wouldnt even drive a car of my own that had different makes of tyres let alone different construction types, try event tyres online they are quite cheap and the prices quoted are fitted at your place of work or home.

you wont regret ditching the RFT's
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      05-07-2008, 01:34 PM   #4
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Quote:
Originally Posted by NFS View Post
1. Mixing RFT and non RFT tyres would be dangerous.

2. Are you sure that the RFT's are the source of the tram railing / camber problems? I don't get this with my tyres. How are the pressures / wear?

Thanks NFS, I kind of thought about the safety aspect.....
I check the tyre pressures every fortnight, so wouldn't seem to be the cause. From a wear perspective, the fronts have about 5mm and the rears have about 3mm.
Wear seems to be pretty even, I'm not seeing anything unusual, running on Michelin Pilot Sports.....

Fronts are:225/40/18
Rears are: 255/35/18

Any suggestions regarding alternative makes/models both RFT and non-RFTs.....
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      05-07-2008, 01:42 PM   #5
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I would go for the PS2's as they are great tyres also I noticed I dont get any tram lines or anything like that anymore..

Pro's

Road noise
Cost
Ride Quality
Tram lines (camber etc)
Handling

Cons

Will not run flat
Need to buy tyre goo and compressor
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      05-07-2008, 01:46 PM   #6
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i know its very hard to get RFT PS2 for the rear for your car easy for the back, so if you did go down the route of changing you would have to change brands, i have p zero on the back and PS2 on the front all runflat seems to do the job lol, but i wished i did the non runflat route now, PS2 non runflats are easy to get hold of
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      05-07-2008, 02:12 PM   #7
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Quote:
1. Mixing RFT and non RFT tyres would be dangerous.
Why?
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      05-07-2008, 02:14 PM   #8
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would you want to drive a car with two different types of tyres with totally different handling characteristics? i think you'd be alone in that one
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      05-07-2008, 02:30 PM   #9
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Quote:
Originally Posted by jasongtr View Post
would you want to drive a car with two different types of tyres with totally different handling characteristics? i think you'd be alone in that one
I'd be willing to bet it's safer then 3 RFT's and a donut though.
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      05-07-2008, 02:37 PM   #10
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I'd be willing to bet it's safer then 3 RFT's and a donut though.

only if the donut passes the 10p tread test
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      05-07-2008, 03:08 PM   #11
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Quote:
Originally Posted by DervFan View Post
Any suggestions regarding alternative makes/models both RFT and non-RFTs.....
I changed my 19" RFTs with Vredestein Ultrac Sessantas. They are a well rated tyre with a good price tag (500 for a set of 4).

I have been extremely impressed with the tyres in all situations so far. They are a huge improvement on the RFTs. All of the harshness, chrashiness and tramlining are gone - driving over cats eyes no longer risks displacing a tooth and minor rattles are gone too.

I personally felt that the RFTs were acceptable for what they are, but replacing them for non run flats makes a significant improvement to the whole driving experience. I really understand why Alpina and M Division do not use RFTs - they significantly comprimise the driving experience of what should be a segment leader in this area, and is when shod with non run flats.

Back to the Vredesteins, they really are a seriously good tyre. Do some research, they are very well rated on many decent motoring forums and review sites. I purchased mine from Pneus Online, a very competitive retailer.

Also - the Vredesteins are XL rated and so have a relatively hard side wall, making them a good combination with the RFT tuned setup on e92s in particular.

Hope this helps.

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      05-07-2008, 03:48 PM   #12
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Why?
f**k me think about it Roofa!?


I am going back to runflats soon!
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      05-07-2008, 03:49 PM   #13
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You got through your set of non-RFTs already
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      05-07-2008, 03:54 PM   #14
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Quote:
Originally Posted by DervFan View Post
You got through your set of non-RFTs already
well nearly lol
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      05-07-2008, 04:59 PM   #15
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Quote:
Originally Posted by DervFan View Post
Thanks NFS, I kind of thought about the safety aspect.....
I check the tyre pressures every fortnight, so wouldn't seem to be the cause. From a wear perspective, the fronts have about 5mm and the rears have about 3mm.
Wear seems to be pretty even, I'm not seeing anything unusual, running on Michelin Pilot Sports.....

Fronts are:225/40/18
Rears are: 255/35/18

Any suggestions regarding alternative makes/models both RFT and non-RFTs.....
Good that you are on top of the pressures. What are you running them at though .. I go midway between the full and part load figures on the door card and it works well for me. Really no problems with tramlining etc..

My car has had bridgestone potenza RFT's since new.
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      05-07-2008, 05:37 PM   #16
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f**k me think about it Roofa!?


About what? mixing crossplys with radials on the same axle was dangerous, mixing radials on different axles would not be an ideal track setup, but most people, if any don't go near a tyres performance abilites on a public road.

Not saying i would do it, but that is because RFT's are shit in comparison to a quality tyre.
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      05-07-2008, 06:01 PM   #17
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I mean, having Completely different compounds on either end of the car is not coducive to good handling lol!
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      05-08-2008, 03:24 PM   #18
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Quote:
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I mean, having Completely different compounds on either end of the car is not coducive to good handling lol!
Have you swallowed a dictionary & partly vomited it back up, Carslosh?

Viv
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      05-08-2008, 03:38 PM   #19
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works fine with my car had it pushed hard round the corners still sticks to the road
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