Non RFTs on one axle only..doable ?

systech · 10-04-2010, 09:02 PM

OK, time to junk the Run Flat tyres on the E92 335...my jaws are starting to hurt with all the jarring ;-{|}

However, I note that the fronts are still in very good nick and being a tight@rs, just wondering whether you can leave the RFTs on the front (225/40/18) and replace the rears with conventional tyres (255/35/18). If not, I'll try and flog the fronts on ebay.

By the way, have had good experiences with Bridgstone Potenza RE01 (Adrenalins) on the other car (certainly good value for money compared to Contis, Michilens etc.) and was considering fitting these. Only thing is, while they do a 22/40/18 for the fronts, the closest they seem to do for the rears is 265/35/18, i.e. 10 mm wider tread. Is this an issue ?

Or any other better suggestions for non RFTs ?

suff · 10-04-2010, 09:19 PM

Although it is "do-able" I would recommend against it, it surprising how much of a difference can be measured between different tire types. Obviously this would be irrelevant during daily driving, but in an emergency stop situation, that slight margin could make a massive difference..

On the tire front.. RE001 Adrenalins are really nice, RE050A's are even better. I am running Advan Neo's on my car now, and although slightly noisy, they are a superb tire with phenomenal grip.. Was previously running Hankook Vento V12's, also a very nice tire, much quieter than the Neo's but not as grippy

Stuart@BMRAutowerkes · 10-04-2010, 11:31 PM

do-able? yep

ideal? nope

10mm won't make much of a difference, I'm pretty sure your rear rims are 9inch wide but maybe someone can confirm this. 265s will fit fine. Is your car lowered? If it is you may get rubbing but I doubt it.

I really like Potenzas - sometimes noisy though and tyre life ain't great due to the soft compound but that's the trade off to good grip and handling.

johnnydad · 10-05-2010, 01:15 AM

Certainly not ideal.

I did it the other way 'round for a month or so and finally ditched the rears (RE050A RFTs which oddly were wearing better) because the handling was a little strange. Grip is so much better with the PS2s, especially in the rain and over broken surfaces, that I really didn't want to continue with the old tyres. Further, the breakaway characteristics of the RFTs were very different, with the PS2s softer sidewall giving greater progression. I think running the old RFTs on the front for a little while is probably just OK as arguably understeer is safer, easier thing to correct (and DSC is pretty clever). But for the sake of a few dollars, I'd urge you to just make the change - the improvement in steering feel alone will have you grinning.

RE050A non RFTs vs RE001s - the 050As will grip that bit longer, and my Subaru experience suggests they are superior in the wet, but they will also ride somewhat more harshly than the 001s and don't wear quite as well.

MFKN3 · 10-05-2010, 10:51 PM

I wouldn't do it mate and would imagine most of the bumps you feel are through the front anyway?

The dollar is so good at the moment, I reckon you could easily get some premium tyres for $1,600. Also, 265 fits fine on the standard rim where 255 is the recommended size. Use to run 265 conti slicks on my stock 230 rims.

10-04-2010, 09:02 PM	#1
systech Private First Class 9 Rep 104 Posts Drives: 335i (sold) 997.2 Carrera S Join Date: Jul 2009 Location: Adelaide South Australia iTrader: (0)	Non RFTs on one axle only..doable ? OK, time to junk the Run Flat tyres on the E92 335...my jaws are starting to hurt with all the jarring ;-{\|} However, I note that the fronts are still in very good nick and being a tight@rs, just wondering whether you can leave the RFTs on the front (225/40/18) and replace the rears with conventional tyres (255/35/18). If not, I'll try and flog the fronts on ebay. By the way, have had good experiences with Bridgstone Potenza RE01 (Adrenalins) on the other car (certainly good value for money compared to Contis, Michilens etc.) and was considering fitting these. Only thing is, while they do a 22/40/18 for the fronts, the closest they seem to do for the rears is 265/35/18, i.e. 10 mm wider tread. Is this an issue ? Or any other better suggestions for non RFTs ?
	Appreciate 0 Tweet Quote

10-04-2010, 09:19 PM	#2
suff On the hunt for PSI 41 Rep 778 Posts Drives: E90 M3 Join Date: Oct 2009 Location: Perth, WA iTrader: (0)	Although it is "do-able" I would recommend against it, it surprising how much of a difference can be measured between different tire types. Obviously this would be irrelevant during daily driving, but in an emergency stop situation, that slight margin could make a massive difference.. On the tire front.. RE001 Adrenalins are really nice, RE050A's are even better. I am running Advan Neo's on my car now, and although slightly noisy, they are a superb tire with phenomenal grip.. Was previously running Hankook Vento V12's, also a very nice tire, much quieter than the Neo's but not as grippy __________________ 2016 Alfa Romeo Guilia Quadrifoglio - Metallic White
	Appreciate 0 Quote

10-04-2010, 11:31 PM	#3
Stuart@BMRAutowerkes Major General 828 Rep 5,530 Posts Drives: a black car Join Date: Sep 2010 Location: Sydney iTrader: (3)	do-able? yep ideal? nope 10mm won't make much of a difference, I'm pretty sure your rear rims are 9inch wide but maybe someone can confirm this. 265s will fit fine. Is your car lowered? If it is you may get rubbing but I doubt it. I really like Potenzas - sometimes noisy though and tyre life ain't great due to the soft compound but that's the trade off to good grip and handling.
	Appreciate 0 Quote

10-05-2010, 01:15 AM	#4
johnnydad Captain 110 Rep 931 Posts Drives: 17 BMW M2 - 05 RS Clio 182 Cup Join Date: Nov 2008 Location: Sydney, NSW iTrader: (0)	Certainly not ideal. I did it the other way 'round for a month or so and finally ditched the rears (RE050A RFTs which oddly were wearing better) because the handling was a little strange. Grip is so much better with the PS2s, especially in the rain and over broken surfaces, that I really didn't want to continue with the old tyres. Further, the breakaway characteristics of the RFTs were very different, with the PS2s softer sidewall giving greater progression. I think running the old RFTs on the front for a little while is probably just OK as arguably understeer is safer, easier thing to correct (and DSC is pretty clever). But for the sake of a few dollars, I'd urge you to just make the change - the improvement in steering feel alone will have you grinning. RE050A non RFTs vs RE001s - the 050As will grip that bit longer, and my Subaru experience suggests they are superior in the wet, but they will also ride somewhat more harshly than the 001s and don't wear quite as well. __________________ John 17 F87 M2 Pure - long beach blue 10 E91 320d LCI - space grey - black dakota - steptronic - innovations - 157s - front PDC - Konis 99 BMW Baby Racer - red; 05 Renaultsport Clio 182 Cup - French Racing Blue - Konis - Eibachs - Remus - Turinis
	Appreciate 0 Quote

10-05-2010, 10:51 PM	#5
MFKN3 Colonel 134 Rep 2,224 Posts Drives: supercharged 4.4L stroker E92 Join Date: Nov 2008 Location: Australia iTrader: (2)	I wouldn't do it mate and would imagine most of the bumps you feel are through the front anyway? The dollar is so good at the moment, I reckon you could easily get some premium tyres for $1,600. Also, 265 fits fine on the standard rim where 255 is the recommended size. Use to run 265 conti slicks on my stock 230 rims.
	Appreciate 0 Quote