tire help on my f22!

jurassic_h3 · 09-04-2023, 08:35 PM

Hi guys,

I’m looking to order some 18” rims for my 2017 230i base but don’t really know what tires to get.

My car has the 205/50 R17 89V tires on all 4 stock and I’ve been looking into new tires with the new 18” rims, but don’t really know setups or what would look good.

Any advice would be greatly appreciated!

MarcoZandrini · 09-16-2023, 10:47 AM

First, determine the circumference of the current 17" tires. Then, determine which 18" tire has the same circumference. The 18" will have a lower "Ratio" number. What's the ration number? It's the number after the "/" in 245/35-18.

09-04-2023, 08:35 PM	#1
jurassic_h3 New Member 0 Rep 5 Posts Drives: 2017 BMW 230i Join Date: Jul 2023 Location: Washington iTrader: (0)	tire help on my f22! Hi guys, I’m looking to order some 18” rims for my 2017 230i base but don’t really know what tires to get. My car has the 205/50 R17 89V tires on all 4 stock and I’ve been looking into new tires with the new 18” rims, but don’t really know setups or what would look good. Any advice would be greatly appreciated!
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09-16-2023, 10:47 AM	#2
MarcoZandrini Major 445 Rep 1,264 Posts Drives: 2018 M240i Join Date: Jun 2017 Location: Virginia iTrader: (0)	First, determine the circumference of the current 17" tires. Then, determine which 18" tire has the same circumference. The 18" will have a lower "Ratio" number. What's the ration number? It's the number after the "/" in 245/35-18.
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