Running different tyres Front and Rear - BMW 3-Series (E90 E92) Forum

TripleBlack · 10-18-2012, 10:41 AM

So I went out this morning to read the tyre information on my car and noticed that my front and rears are completely different. I know it is advisable to have the same brand and model tyres all around but I was surprised to find that only my rears are runflats! Is this standard BMW spec? Because I would have thought that it would affect the performance and stability.

FRONTS: Bridgestone Potenza RE050A* tubeless 225/35/R19 88Y

REARS: Pirelli P-ZERO runflat 255/30/R19 91Y

Both types of tyres are BMW recommended ones.

rsmallwo · 10-20-2012, 03:22 PM

think mixing rft and non rft is a big no no....

dump the rear rfts and get some normal tyres. rft's sell for ok money on ebay

chris_s1 · 10-21-2012, 05:16 AM

Are you sure the fronts aren't run-flat? Is there an RSC logo on the sidewall? IIRC the Bridgestones don't actually have the word 'runflat' on them.
Would be unusual to see a RE050A that wasn't a runflat

zltm089 · 10-21-2012, 05:56 AM

RE050A can be normal tyres aswell...they're oem on the TTS. OP has to check the RFT logo...

TripleBlack · 10-21-2012, 07:42 AM

hi, sorry guys. This is a duplicate thread which I had put here thinking it was the right section but it seems to have caught on else where. Thanks

http://www.e90post.com/forums/showthread.php?t=759744

10-18-2012, 10:41 AM	#1
TripleBlack Second Lieutenant Drives: 2007 BMW E93 335i Join Date: Jun 2012 Location: London Posts: 240 iTrader: (0)	Running different tyres Front and Rear So I went out this morning to read the tyre information on my car and noticed that my front and rears are completely different. I know it is advisable to have the same brand and model tyres all around but I was surprised to find that only my rears are runflats! Is this standard BMW spec? Because I would have thought that it would affect the performance and stability. FRONTS: Bridgestone Potenza RE050A* tubeless 225/35/R19 88Y REARS: Pirelli P-ZERO runflat 255/30/R19 91Y Both types of tyres are BMW recommended ones.
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10-21-2012, 05:16 AM	#3
chris_s1 Captain Drives: 2012 E92 335d MSport Join Date: Jun 2009 Location: Swindon, UK Posts: 978 iTrader: (0) Garage List 2012 E92 335d [4.33]	Are you sure the fronts aren't run-flat? Is there an RSC logo on the sidewall? IIRC the Bridgestones don't actually have the word 'runflat' on them. Would be unusual to see a RE050A that wasn't a runflat __________________ 2012 Alpine White E92 335d M Sport LCI \| Coral Red Dakota Leather \| Media Package - BMW Professional \| 313 Wheels \| Evolved \| Previously - 2009 Alpine White 325d M Sport LCI \| Auto + Paddles \| Media Package - BMW Professional \| BMW Performance Front, Sideskirts and 313P Wheels \| Black Grilles \| Carbon Black ///M3 Convertible '04 \| Manual \| Evolved \|

10-21-2012, 05:56 AM	#4
zltm089 Major General Drives: 335i SE Coupe Space Grey Join Date: Nov 2008 Location: LONDON Posts: 6,458 iTrader: (0) Garage List 2006 BMW 335i [5.00]	RE050A can be normal tyres aswell...they're oem on the TTS. OP has to check the RFT logo... __________________ Current Car: E92 335i SE Dream Cars: AMG SL65 Black,GallardoSuperleggera, GTR 2012, Agera R, F430 Scuderia, DBS, EVO X FQ400, Lexus LFA, F10 M5, e92 M3, GT3 RS4.0, Ferrari 458, Ferrari F12, R8 V10 plus, Jaguar F Type V8, Lamborghini LP700-4 Aventador, Chevrolet Camaro ZL1, C63 AMG Coupe Black, Vanquish 2012.

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10-20-2012, 03:22 PM	#2
rsmallwo Captain Drives: 335d Join Date: Jan 2010 Location: hull Posts: 869 iTrader: (0)	think mixing rft and non rft is a big no no.... dump the rear rfts and get some normal tyres. rft's sell for ok money on ebay

10-21-2012, 07:42 AM	#5
TripleBlack Second Lieutenant Drives: 2007 BMW E93 335i Join Date: Jun 2012 Location: London Posts: 240 iTrader: (0)	hi, sorry guys. This is a duplicate thread which I had put here thinking it was the right section but it seems to have caught on else where. Thanks http://www.e90post.com/forums/showthread.php?t=759744