Confused about tyre sizes?

Kryptek49 · 07-10-2018, 10:51 AM

I need to replace my rear tyres and I've been looking online and my current tyres don't appear to be the correct size?

I've got a 2006 BMW 320i, with 16" Rims.

The current tyres are 225/50/R16

Is this incorrect? It appears that the suggested tyres are 205/55/R16, which is different on both the width and the profile?

Anyone got any advice on which ones I should get? Very confused

Thank you.

gIzzE · 07-10-2018, 02:17 PM

That size is fine.

Everytime you go wider by 20 you should drop the sidewall (which is a percentage of the width) by one, so going 205/55 to 225 would need a 50% sidewall profile instead of the 55%.

Use the tyre calculator on the top of this section to get an understanding of tyre sizes.

Hello from Wymondham btw!!

Sbryan1955 · 07-16-2018, 05:20 PM

What's the largest tire that will fit my 2007 328I Coupe?

Antetokounmpo · 07-17-2018, 04:05 PM

Quote:

Originally Posted by Sbryan1955

What's the largest tire that will fit my 2007 328I Coupe?

anything is possible with enough money

07-10-2018, 10:51 AM	#1
Kryptek49 New Member 6 Rep 15 Posts Drives: BMW 320i 06 Join Date: Sep 2016 Location: Norfolk, UK iTrader: (0)	Confused about tyre sizes? I need to replace my rear tyres and I've been looking online and my current tyres don't appear to be the correct size? I've got a 2006 BMW 320i, with 16" Rims. The current tyres are 225/50/R16 Is this incorrect? It appears that the suggested tyres are 205/55/R16, which is different on both the width and the profile? Anyone got any advice on which ones I should get? Very confused Thank you.
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07-10-2018, 02:17 PM	#2
gIzzE Major General 363 Rep 5,984 Posts Drives: F11 + 911 C4 Join Date: Apr 2006 Location: Norfolk, UK. iTrader: (2)	That size is fine. Everytime you go wider by 20 you should drop the sidewall (which is a percentage of the width) by one, so going 205/55 to 225 would need a 50% sidewall profile instead of the 55%. Use the tyre calculator on the top of this section to get an understanding of tyre sizes. Hello from Wymondham btw!!
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07-16-2018, 05:20 PM	#3
Sbryan1955 Enlisted Member 2 Rep 30 Posts Drives: BMW 328I Coupe Join Date: Jun 2018 Location: Huntsville, AL iTrader: (0)	Style 157 - 17 x 8 Rim Size What's the largest tire that will fit my 2007 328I Coupe?
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