Run-Flats ? Repair or Change

[fantastic3]

To add to the above , I think need to get the rite people to do the patches as not all tyre shops will patch RFs.3 months back, I did enquired about patching up runflat tyres with a well-known tyre shop in Kaki Bukit and was told he would not patch RFs. Dont know whether things have changed since.

[totoseow]

no problem..just make sure the nail is in the middle...its the side wall that has the reinforcement...it is xtremely thick at the side....u shud look at the tire even after all air gone. u wun even know there is a puncture. i doubt anyone can patch it.

[maestro]

very comprehensive info on run-flats. question answered.
http://www.etyres.co.uk/run-flat-tyres

[eggz]

I think RFs are good for 20K km tops. I've just hit this mileage in my E60 with Dunlop RFs and about to change to PS2s. Been stalling on the change thinking perhaps I'll wait till after the 10 Feb track day and give the RFs one final trash at Sepang.

Low and behold, had a rude shock on my way to the meetup today on Nicoll Highway, it was raining very heavy, and traffic was light, decided to have a bit of fun, switched to manual mode on the step and turned off the DTC. Got the tail out on a few turns for some fun, but the shocker came when I got HUGE understeer the moment I hit above 100km/h. There was just zero grip on the front tyres, zilch, zippo, I can turn the wheel 15-20 degrees above 100km/h and the car would go straight! It was crazy. Grip only returned to the fronts at somewhere about 95km/h.

My RFs are completely screwed, I'm off Hurry's sometime in the next couple of days to get the PS2s

[TripleM]

Originally Posted by eggz

I think RFs are good for 20K km tops. I've just hit this mileage in my E60 with Dunlop RFs and about to change to PS2s. Been stalling on the change thinking perhaps I'll wait till after the 10 Feb track day and give the RFs one final trash at Sepang.

Low and behold, had a rude shock on my way to the meetup today on Nicoll Highway, it was raining very heavy, and traffic was light, decided to have a bit of fun, switched to manual mode on the step and turned off the DTC. Got the tail out on a few turns for some fun, but the shocker came when I got HUGE understeer the moment I hit above 100km/h. There was just zero grip on the front tyres, zilch, zippo, I can turn the wheel 15-20 degrees above 100km/h and the car would go straight! It was crazy. Grip only returned to the fronts at somewhere about 95km/h.

My RFs are completely screwed, I'm off Hurry's sometime in the next couple of days to get the PS2s

U love ADT/IDT too much.........

[totoseow]

Originally Posted by eggz

I think RFs are good for 20K km tops. I've just hit this mileage in my E60 with Dunlop RFs and about to change to PS2s. Been stalling on the change thinking perhaps I'll wait till after the 10 Feb track day and give the RFs one final trash at Sepang.

Low and behold, had a rude shock on my way to the meetup today on Nicoll Highway, it was raining very heavy, and traffic was light, decided to have a bit of fun, switched to manual mode on the step and turned off the DTC. Got the tail out on a few turns for some fun, but the shocker came when I got HUGE understeer the moment I hit above 100km/h. There was just zero grip on the front tyres, zilch, zippo, I can turn the wheel 15-20 degrees above 100km/h and the car would go straight! It was crazy. Grip only returned to the fronts at somewhere about 95km/h.

My RFs are completely screwed, I'm off Hurry's sometime in the next couple of days to get the PS2s

gene...its about 5mths since i told u ur RFs belong on the side of a sampan to ubin. be careful.

[kleong007]

Does anyone have experience with CSC2 RF's? How do they compare with the rest?

[Jase]

Can anyone confirm the price of standard 16" RFTs? I'm just curious cause I was told that it goes as high as $500 per piece.

[eldwin]

Jase, i think if the day your RF needs to be changed, go for the normal tyres. You will not regret that. I just did that last weekend, and the difference is significant:

1. Safety - With my old run flat, my car use to "slip" a little whenever I drive into my carpark. There was once it was pouring heavily, my car just skidded and compeletely out of control.

2. Comfort - road noise is easily 30-50% lesser and the ride is much "softer". Even the passenger will be able to feel it.

3. Price - should still be much cheaper ($XX * 4) than a RF even if you go for a decent normal tyre

Hope this info will be useful.

[Jase]

Originally Posted by eldwin

Jase, i think if the day your RF needs to be changed, go for the normal tyres. You will not regret that. I just did that last weekend, and the difference is significant:

1. Safety - With my old run flat, my car use to "slip" a little whenever I drive into my carpark. There was once it was pouring heavily, my car just skidded and compeletely out of control.

2. Comfort - road noise is easily 30-50% lesser and the ride is much "softer". Even the passenger will be able to feel it.

3. Price - should still be much cheaper ($XX * 4) than a RF even if you go for a decent normal tyre

Hope this info will be useful.

Thanks Eldwin. Your suggestion makes fantastic sense. The problem which I face is that my E90 doesn't have a slot for an extra car tyre which means that I'm kinda stuck with RFTs for a while I like the idea of having RFTs but am conscious of the costs. I'm not aware of the slipping problem though - this sounds quite nasty. My RFTs have quite good grip on carpark surfaces but then again, I've not tried it when it's wet etc.