Tire question

Steve Miller · 10-03-2021, 08:46 AM

I came out to find a 3" gash in my sidewall. Due to shortages, Im told it will be 10 - 14 days to get a replacement.

Currently, I have PIRELLI CINTURATO P7 RUNFLAT 245/40/19 98Y - Y rated (186 mph)

I decided to buy a used tire on eBay to hold me over until I get the new one. I found one on eBay that is basically the same but is H rated ( 130 mph)

Is there another measurement I need to check and will it be okay to have 1 different than the rest?

Thanks

Hoa · 10-03-2021, 09:55 PM

I think load index matters more than speed rating. Most of us do not go 100+mph. Also, make sure the tire is not too old. Tires are only safe for 6 years or less. Look for a 4 digit number. It should be something like (3520). It means 35th week of year 2020

ChiNorm · 10-04-2021, 08:52 AM

Is the tire the same diameter as your other tire? If not, asking for trouble.

Unspec · 10-04-2021, 09:07 AM

As ChiNorm stated, xDrive require all wheel diameters to be within 1% of each other.

10-03-2021, 08:46 AM	#1
Steve Miller Enlisted Member 5 Rep 33 Posts Drives: 2106 BMW 550i MSport Join Date: Aug 2020 Location: Orlando, FL iTrader: (0)	Tire question - H or Y rating question I came out to find a 3" gash in my sidewall. Due to shortages, Im told it will be 10 - 14 days to get a replacement. Currently, I have PIRELLI CINTURATO P7 RUNFLAT 245/40/19 98Y - Y rated (186 mph) I decided to buy a used tire on eBay to hold me over until I get the new one. I found one on eBay that is basically the same but is H rated ( 130 mph) Is there another measurement I need to check and will it be okay to have 1 different than the rest? Thanks __________________ 2016 550i MSport
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10-03-2021, 09:55 PM	#2
Hoa Major 513 Rep 1,356 Posts Drives: BMW Join Date: May 2010 Location: GA iTrader: (9)	I think load index matters more than speed rating. Most of us do not go 100+mph. Also, make sure the tire is not too old. Tires are only safe for 6 years or less. Look for a 4 digit number. It should be something like (3520). It means 35th week of year 2020
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10-04-2021, 08:52 AM	#3
ChiNorm Second Lieutenant 92 Rep 234 Posts Drives: '13 535xi Join Date: Nov 2016 Location: Chicago iTrader: (0)	Is the tire the same diameter as your other tire? If not, asking for trouble.
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10-04-2021, 09:07 AM	#4
Unspec Colonel 1303 Rep 2,591 Posts Drives: 2015 BMW 535xi Join Date: Apr 2019 Location: DMV iTrader: (1)	As ChiNorm stated, xDrive require all wheel diameters to be within 1% of each other. __________________ 2015 BMW 535xi Bootmod3 Stage 2 \| ER charge pipe \| ER Catted DP \| Remus Exhaust \| Gplus FMIC \| KW V3 \| Turner Monoball thrust arm bushings \| Wallet regrets ISTA VM Setup/Tutorial
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