Potenza RE050A RFT vs Potenza RE050A I RFT

Bagelfast · 03-16-2010, 03:46 PM

So my 2007 E92 335i sport came with Potenza RE050A RFT tires and the ride is really ruff and i gets bubbles on the front tires all the time.

My 2010 E90 LCI 335i m-sport came with Potenza RE050A I RFT.

What does the I stand for? The E90 seems to ride a bit smoother aswell.

ibimmer954 · 03-16-2010, 03:53 PM

I know there was supposed to be an improved "2.0" version of the RE050A tire coming out. Read about it last November. Maybe it's the improved version of the tire. Why Bridgestone gave the "improved" tire the same model name, I'm not sure.

Ron1n · 03-16-2010, 04:51 PM

3.0, not 2.0

SCA · 03-16-2010, 07:23 PM

Per Tirerack Potenza RE050A I RFT is the latest version.

jopa489 · 03-16-2010, 09:36 PM

Pretty sure these are not the "3G" RE050A's that Japan already has. Tirerack already has Potenza RE050A I and Potenza RE050A II in stock, both of which have been available for a while.

Oulixes · 03-16-2010, 09:46 PM

I've wondered about Bridgestone tires, since I have to put new rubber on my 330xi, and Bridgestone was one of the candidates. My other car is a 335i, MY2009, and came with Bridgestones RE050A I RFT, which conforms to the excellent table SCA posted. I thought RE050A was the first and R050A I the second generation RFT. A third generation Bridgestone has been announced and received the usual accolades, but is not available anywhere I know for purchase. Also, the designation of the tire AFAIK has not been published (RE050A II ?).

acerboo · 03-17-2010, 03:27 AM

IMO bridgestone= Crap

BV 50ANA · 03-17-2010, 03:38 AM

Quote:

Originally Posted by acerboo

IMO bridgestone= Crap

there is a new generation mf potenza rft coming...i have a document but it is in german...
they promise improvment...

smellthebeans · 03-17-2010, 05:10 AM

I noticed a second option for tires at tire rack also a few weeks ago. I also read in Roundel that Bridgestone was developing a newer version of the RFT that has similar charcteristics of a regular tire. Hard to understand because they feel like lead weights!

Thats all I have heard...if the second generation is out...the marketing department has been quiet.

This thread would probably get more results over in the wheel & tire section.

cstavaru · 03-17-2010, 05:56 AM

I have Bridgestone RE050A II. I like them, to be honest. I have 20.000 miles on them and they still have tread. They are pretty soft over bumps, but I read the Michelin PS2 RFT are softer (but wear faster).

SCA · 03-17-2010, 06:36 AM

Quote:

Originally Posted by cstavaru

I have Bridgestone RE050A II. I like them, to be honest. I have 20.000 miles on them and they still have tread. They are pretty soft over bumps, but I read the Michelin PS2 RFT are softer (but wear faster).

One thing I have noticed is the sidewall is significantly thicker (wider) on the PS2 RFT vs. the RE050A RFT. I still have my factory Bridgestones while a family member has had the PS2s for over a year. BTW, the ride with the PS2s is dramatically improved.

rothwem · 03-17-2010, 07:35 AM

Quote:

Originally Posted by cstavaru

I have Bridgestone RE050A II. I like them, to be honest. I have 20.000 miles on them and they still have tread. They are pretty soft over bumps, but I read the Michelin PS2 RFT are softer (but wear faster).

I had a set of the RE050 II's also. They weren't as bad as people said, but non-runflats definitly ride better, handle just as good, and cost way less. I am rolling on 17's though.

Ron1n · 03-17-2010, 08:32 AM

Quote:

Originally Posted by cstavaru

I have Bridgestone RE050A II. I like them, to be honest. I have 20.000 miles on them and they still have tread. They are pretty soft over bumps, but I read the Michelin PS2 RFT are softer (but wear faster).

About 7500 on mine, with 90% tread (PS2 ZPs). I'd say mine are probably going to last longer than yours. :P

Bagelfast · 03-18-2010, 12:51 PM

The RE050A I ride alot better than the Regular RE050A... i have two cars with both tires on them so i knpow exactly how they feel, and the 'I' tire is ALOTT softer over bumps and rides better... so i would def go for the 'I' if that is the new generation, its 100x better than the regular ones IMHO.

Neutrino45 · 03-20-2010, 08:11 AM

Quote:

Originally Posted by Oulixes

I've wondered about Bridgestone tires, since I have to put new rubber on my 330xi, and Bridgestone was one of the candidates. My other car is a 335i, MY2009, and came with Bridgestones RE050A I RFT, which conforms to the excellent table SCA posted. I thought RE050A was the first and R050A I the second generation RFT. A third generation Bridgestone has been announced and received the usual accolades, but is not available anywhere I know for purchase. Also, the designation of the tire AFAIK has not been published (RE050A II ?).

RE050A II has been available since 2008.

CosmosMpower · 11-30-2011, 08:39 PM

Is it ok to mix the old and new versions? Tread looks the same

Three_thirty_I · 05-07-2012, 12:25 PM

Quote:

Originally Posted by CosmosMpower

Is it ok to mix the old and new versions? Tread looks the same

Digging up an older thread. Find myself in the same situation as above - trying to figure out the difference between these various sub-models RE050A...

Spoke to a technical person at Bridgestone and he seemed to insist that there is no problem mixing these tyres, however since the construction is slightly difference (plus now I see that there are differences in tread depth, width and even diameter), so it will be a problem on the same axle - might cause a certain degree of tyre pull. But same pairs on the same axle should be fine, I would think especially when you have narrow/wides etc.

But, I still am concerned that Tirerack makes a point to say that Bridgestone suggests that you may not mix them...

03-16-2010, 03:46 PM	#1
Bagelfast Lieutenant Colonel 125 Rep 1,546 Posts Drives: BMW Join Date: Sep 2008 Location: USA iTrader: (0)	Potenza RE050A RFT vs Potenza RE050A I RFT So my 2007 E92 335i sport came with Potenza RE050A RFT tires and the ride is really ruff and i gets bubbles on the front tires all the time. My 2010 E90 LCI 335i m-sport came with Potenza RE050A I RFT. What does the I stand for? The E90 seems to ride a bit smoother aswell.
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03-16-2010, 03:53 PM	#2
ibimmer954 Major 138 Rep 1,424 Posts Drives: '23 i4 M50, '15 M3, '18 911 Join Date: Jul 2007 Location: San Diego, California, USA iTrader: (0) Garage List 2015 BMW M3 [9.75] 2023 BMW i4 M50 [0.00] 2018 Porsche 911 C4S [0.00] 2019 BMW X4 M40i [0.00]	I know there was supposed to be an improved "2.0" version of the RE050A tire coming out. Read about it last November. Maybe it's the improved version of the tire. Why Bridgestone gave the "improved" tire the same model name, I'm not sure.
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03-16-2010, 04:51 PM	#3
Ron1n Speed Demon 205 Rep 3,690 Posts Drives: 2021 M5C Join Date: Oct 2009 Location: Irvine iTrader: (6) Garage List 2021 M5 Competition [0.00] 2016 BMW 550i [0.00] 2011 335is [0.00] 2009 E93 M3 [10.00] 2010 335d [9.50]	3.0, not 2.0 __________________ Current: '21 M5C, '15 X6 50i Previous: '18 M550i, '16 550i, '11 335is, '09 E93 M3 DCT, '10 E90 335d, '07 E90 328i
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03-16-2010, 07:23 PM	#4
SCA Brigadier General 565 Rep 3,742 Posts Drives: Multiple BMWs Join Date: Apr 2005 Location: 🇺🇸 iTrader: (0)	Per Tirerack Potenza RE050A I RFT is the latest version. Attached Images
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03-16-2010, 09:36 PM	#5
jopa489 Major General 122 Rep 6,594 Posts Drives: Anything with Wheels Join Date: Mar 2009 Location: USA iTrader: (9)	Pretty sure these are not the "3G" RE050A's that Japan already has. Tirerack already has Potenza RE050A I and Potenza RE050A II in stock, both of which have been available for a while. __________________ X7 LCI // Incoming C7 ZR1 ZTK // Sebring + TRX // Hydro + Raptor Gen1 Roush // Tuxedo Last edited by jopa489; 03-16-2010 at 09:50 PM.. Reason: Typo
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03-16-2010, 09:46 PM	#6
Oulixes Lieutenant Colonel 22 Rep 1,938 Posts Drives: 330xi, 335i Join Date: Feb 2009 Location: Terra Borealis iTrader: (0)	I've wondered about Bridgestone tires, since I have to put new rubber on my 330xi, and Bridgestone was one of the candidates. My other car is a 335i, MY2009, and came with Bridgestones RE050A I RFT, which conforms to the excellent table SCA posted. I thought RE050A was the first and R050A I the second generation RFT. A third generation Bridgestone has been announced and received the usual accolades, but is not available anywhere I know for purchase. Also, the designation of the tire AFAIK has not been published (RE050A II ?).
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03-17-2010, 03:27 AM	#7
acerboo Brigadier General 179 Rep 3,923 Posts Drives: e92 335d lci Join Date: Jul 2008 Location: kent iTrader: (2)	IMO bridgestone= Crap
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03-17-2010, 05:10 AM	#9
smellthebeans Lieutenant Colonel 87 Rep 1,555 Posts Drives: LPCs Join Date: Dec 2006 Location: San Antonio iTrader: (2) Garage List 1990 325i [0.00]	I noticed a second option for tires at tire rack also a few weeks ago. I also read in Roundel that Bridgestone was developing a newer version of the RFT that has similar charcteristics of a regular tire. Hard to understand because they feel like lead weights! Thats all I have heard...if the second generation is out...the marketing department has been quiet. This thread would probably get more results over in the wheel & tire section. __________________
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03-17-2010, 05:56 AM	#10
cstavaru Brigadier General 313 Rep 3,262 Posts Drives: 2009 335i M Sport Sedan 6MT Join Date: Aug 2008 Location: Bucharest, Romania iTrader: (0)	I have Bridgestone RE050A II. I like them, to be honest. I have 20.000 miles on them and they still have tread. They are pretty soft over bumps, but I read the Michelin PS2 RFT are softer (but wear faster). __________________ Mods(click): Cobb + RB Turbos \| Aquamist HFS-4 Meth \| Drexler LSD \| Bilstein B12 Pro-Kit \| Custom K&N Apollo Intake \| Wagner Intercooler \| Macht Schnell Downpipes \| BMW Performance Power Kit \| BMW Performance Exhaust \| BMW Performance Short Shifter \| M3 Subframe Bushings \|
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03-18-2010, 12:51 PM	#14
Bagelfast Lieutenant Colonel 125 Rep 1,546 Posts Drives: BMW Join Date: Sep 2008 Location: USA iTrader: (0)	The RE050A I ride alot better than the Regular RE050A... i have two cars with both tires on them so i knpow exactly how they feel, and the 'I' tire is ALOTT softer over bumps and rides better... so i would def go for the 'I' if that is the new generation, its 100x better than the regular ones IMHO.
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11-30-2011, 08:39 PM	#16
CosmosMpower Brigadier General 2051 Rep 3,714 Posts Drives: F87c, GT3, MK7 GTI Join Date: Apr 2011 Location: Frisco, TX iTrader: (1)	Is it ok to mix the old and new versions? Tread looks the same
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