265/30/19 or 255/35/19?

phil200tdi · 07-29-2013, 04:29 AM

I am looking at new rear tyres.

I'm currently running Avon ZZ3 265/30/19's and want to get Avon ZZ5's next time round. They only make the ZZ5's in 255/35/19.

Will these fit? I gather they are a slightly larger rolling radius.

I'm also hoping a slightly higher sidewall will improve the ride - may be dreaming...

phil200tdi · 07-29-2013, 06:30 PM

Anyone?

Telly Addict · 07-29-2013, 06:33 PM

I am running with 255/35/19 and I would say the ride is very good. The tyres are conti sport contact M3s.

phil200tdi · 07-30-2013, 01:37 AM

Cool thanks!

I'll get those ordered now.

djgandy · 07-30-2013, 04:39 AM

How do you get the speedo re-calibrated for the larger tyres?

Telly Addict · 07-30-2013, 06:25 AM

Quote:

Originally Posted by djgandy

How do you get the speedo re-calibrated for the larger tyres?

Given the small difference and allowing for margin of error, I don't reckon it's worth it. The speedo seems to match up perfectly with the radar warnings I drive through in little villages.

djgandy · 07-30-2013, 08:23 AM

Quote:

Originally Posted by Telly Addict

Given the small difference and allowing for margin of error, I don't reckon it's worth it. The speedo seems to match up perfectly with the radar warnings I drive through in little villages.

Yeah I guess it is only 2-3% if that. I am wondering myself whether tyres with a bit more profile on them would be better. 255/30 is pretty ridiculous really

Telly Addict · 07-30-2013, 01:18 PM

Quote:

Originally Posted by djgandy

Yeah I guess it is only 2-3% if that. I am wondering myself whether tyres with a bit more profile on them would be better. 255/30 is pretty ridiculous really

Absolutely. I am running 225/40/19 and 255/35/19. I like it, but then I haven't experienced the stock tyres...the car came with these tyres on.

Shaq · 07-31-2013, 05:47 PM

Hi,

I was asking my self the same questions when i was deciding to increase to a 265 from a 255.

I went from Bridgestone (255 30 19) run flats to michelin pilot sports (265 30 19)

The diffrence was incredible.

But anyway here is a online tool I used to compare the different tyre sizes and how much your speedo will be out at a given speed.

http://tire-size-conversion.com/tire-size-comparison/

Hope it helps

ShaQ

djgandy · 08-01-2013, 03:12 AM

Surely most of your difference was due to not using run-flat rather than the size change? Adding 10mm width only adds 3mm to the sidewall. Going 255/35/ adds a full 13mm! Useful link though

David c · 08-01-2013, 08:19 AM

Useful thread I think I'll go with a 225/40 and 255/35 when I change tyres next.

djgandy · 08-01-2013, 08:38 AM

Quote:

Originally Posted by David c

Useful thread I think I'll go with a 225/40 and 255/35 when I change tyres next.

Has anyone done the above with 225M's? I'd be interested to see how the slightly bigger tyres look.

Telly Addict · 08-01-2013, 03:00 PM

Quote:

Originally Posted by djgandy

Has anyone done the above with 225M's? I'd be interested to see how the slightly bigger tyres look.

Yeah I have 225Ms, check my threads out for pictures.

djgandy · 08-01-2013, 03:30 PM

cool. could you get some more just of the tyres and clearances. I may do this when I replace mine, really would like a bit more sidewall, the roads are so bad these days it can't be a bad thing.

Telly Addict · 08-01-2013, 03:41 PM

Quote:

Originally Posted by djgandy

cool. could you get some more just of the tyres and clearances. I may do this when I replace mine, really would like a bit more sidewall, the roads are so bad these days it can't be a bad thing.

Not at the moment I'm afraid - I've got 313 reps on while the 225s are being straightened.

07-29-2013, 04:29 AM	#1
phil200tdi Colonel 112 Rep 2,621 Posts Drives: 335i M Sport E90 LCI manual Join Date: Jan 2011 Location: Aylesbury iTrader: (1)	265/30/19 or 255/35/19? I am looking at new rear tyres. I'm currently running Avon ZZ3 265/30/19's and want to get Avon ZZ5's next time round. They only make the ZZ5's in 255/35/19. Will these fit? I gather they are a slightly larger rolling radius. I'm also hoping a slightly higher sidewall will improve the ride - may be dreaming... __________________ Car: e91 330d with Viezu map Gone but not forgotten: 2010 Jaguar XFR (Cat-back exhaust, pulley, intake mods and map), Highly Modified E90 335i LCI M Sport Manual (circa 480BHP/500lb ft)
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07-29-2013, 06:30 PM	#2
phil200tdi Colonel 112 Rep 2,621 Posts Drives: 335i M Sport E90 LCI manual Join Date: Jan 2011 Location: Aylesbury iTrader: (1)	Anyone? __________________ Car: e91 330d with Viezu map Gone but not forgotten: 2010 Jaguar XFR (Cat-back exhaust, pulley, intake mods and map), Highly Modified E90 335i LCI M Sport Manual (circa 480BHP/500lb ft)
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07-29-2013, 06:33 PM	#3
Telly Addict Banned 19 Rep 305 Posts Drives: 2 wheels! Join Date: Mar 2013 Location: Scotland iTrader: (5)	I am running with 255/35/19 and I would say the ride is very good. The tyres are conti sport contact M3s.
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07-30-2013, 01:37 AM	#4
phil200tdi Colonel 112 Rep 2,621 Posts Drives: 335i M Sport E90 LCI manual Join Date: Jan 2011 Location: Aylesbury iTrader: (1)	Cool thanks! I'll get those ordered now. __________________ Car: e91 330d with Viezu map Gone but not forgotten: 2010 Jaguar XFR (Cat-back exhaust, pulley, intake mods and map), Highly Modified E90 335i LCI M Sport Manual (circa 480BHP/500lb ft)
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07-30-2013, 04:39 AM	#5
djgandy Colonel 146 Rep 2,337 Posts Drives: E93 M3 Join Date: Aug 2012 Location: London iTrader: (0) Garage List 2011 M3 [0.00]	How do you get the speedo re-calibrated for the larger tyres?
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07-31-2013, 05:47 PM	#9
Shaq New Member 0 Rep 8 Posts Drives: E92 335d m sport Join Date: Jun 2013 Location: Surrey , England iTrader: (0)	Hi, I was asking my self the same questions when i was deciding to increase to a 265 from a 255. I went from Bridgestone (255 30 19) run flats to michelin pilot sports (265 30 19) The diffrence was incredible. But anyway here is a online tool I used to compare the different tyre sizes and how much your speedo will be out at a given speed. http://tire-size-conversion.com/tire-size-comparison/ Hope it helps ShaQ Last edited by Shaq; 07-31-2013 at 05:48 PM.. Reason: Link
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08-01-2013, 03:12 AM	#10
djgandy Colonel 146 Rep 2,337 Posts Drives: E93 M3 Join Date: Aug 2012 Location: London iTrader: (0) Garage List 2011 M3 [0.00]	Surely most of your difference was due to not using run-flat rather than the size change? Adding 10mm width only adds 3mm to the sidewall. Going 255/35/ adds a full 13mm! Useful link though
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08-01-2013, 08:19 AM	#11
David c Private 5 Rep 81 Posts Drives: E92 325d M Sport Join Date: May 2013 Location: North East iTrader: (0)	Useful thread I think I'll go with a 225/40 and 255/35 when I change tyres next.
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08-01-2013, 03:30 PM	#14
djgandy Colonel 146 Rep 2,337 Posts Drives: E93 M3 Join Date: Aug 2012 Location: London iTrader: (0) Garage List 2011 M3 [0.00]	cool. could you get some more just of the tyres and clearances. I may do this when I replace mine, really would like a bit more sidewall, the roads are so bad these days it can't be a bad thing.
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