19" and 20" Wheel and Tire Dimensions Pls!
#1
19" and 20" Wheel and Tire Dimensions Pls!
Hi.. i'm brand new to this forum and i also don't know much about what is right for my car and i have no one to go to for help.. besides the ppl at my wheel and tire shop.. which i do not always trust.. sooo.. any suggestions would be very helpful.
I drive a '05 coupe with 18"s on the original Michelin tires. I need to get new tires soon and I figured it's a good opportunity to upgrade my wheels at the same time. Can anyone suggest the proper wheel dimensions and tire sizes for 19"s and 20"s? I don't have any modifications and I don't want to do any lowering. Thank you!
I drive a '05 coupe with 18"s on the original Michelin tires. I need to get new tires soon and I figured it's a good opportunity to upgrade my wheels at the same time. Can anyone suggest the proper wheel dimensions and tire sizes for 19"s and 20"s? I don't have any modifications and I don't want to do any lowering. Thank you!
Last edited by InMyHead785; 10-07-2007 at 11:01 PM.
#4
#5
OEM height is 26.72"
I don't think 245/30/20 is a good choice since it's .9" shorter than OEM 19" rims, and 275/30/20 is only off by .1" 275/35/20 is .9" taller than OEM.
245/35/20 front 26.7" tall
285/30/20 rear 26.8" tall
each tire brand varies somewhat, but this is pretty close and a good choice for 20's, just check the tire overall diameter before you buy.
I don't think 245/30/20 is a good choice since it's .9" shorter than OEM 19" rims, and 275/30/20 is only off by .1" 275/35/20 is .9" taller than OEM.
245/35/20 front 26.7" tall
285/30/20 rear 26.8" tall
each tire brand varies somewhat, but this is pretty close and a good choice for 20's, just check the tire overall diameter before you buy.
Last edited by mt7rabbit; 10-08-2007 at 02:21 PM.
#6
Originally Posted by mt7rabbit
OEM height is 26.72"
I don't think 245/30/20 is a good choice since it's .9" shorter than OEM 19" rims, and 275/30/20 is only off by .1" 275/35/20 is .9" taller than OEM.
245/35/20 front 26.7" tall
285/30/20 rear 26.8" tall
each tire brand varies somewhat, but this is pretty close and a good choice for 20's, just check the tire overall diameter before you buy.
I don't think 245/30/20 is a good choice since it's .9" shorter than OEM 19" rims, and 275/30/20 is only off by .1" 275/35/20 is .9" taller than OEM.
245/35/20 front 26.7" tall
285/30/20 rear 26.8" tall
each tire brand varies somewhat, but this is pretty close and a good choice for 20's, just check the tire overall diameter before you buy.
#7
Originally Posted by redlude97
Maybe you should do your math again, because its WAY off. OEM 225/40/19 is 26.1" tall, 245/30/20 is 25.8" tall, a 1.1% difference. A 245/35/20 is 26.8" tall, a 2.6% difference, and is actually taller than a 275/30/20 by .3". If you went with a 255/30/20, then its 26" tall, and almost spot on for a 225/40/19 stock size. 35 series tires should NOT be used on a coupe in almost any circumstance.
I searched a generic calculator and it states the following:
http://www.miata.net/garage/tirecalc.html
225/40/19 is 26.1" tall
245/40/19 is 26.7" tall.
front
245/35/20 is 26.8” tall a 2.6% difference
245/30/20 is 25.8" tall a 1.1% difference
255/30/20 is 26.0" tall a -.2% difference – very close
rear
275/35/20 is 27.6" tall a 3.2% difference
275/30/20 is 26.5" tall a -.8% difference
285/30/20 is 26.7" tall a .1% difference – very close
based on this new info I would say a 255/30/20 and 285/30/20 is your best bet on a 9” and 10” rim respectively. Like I said each tire varies slightly these numbers might not apply to the brand of tire you get, so ask before you buy.
Last edited by mt7rabbit; 10-08-2007 at 05:52 PM.
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#8
Originally Posted by mt7rabbit
according to the web site I was using the size for a 225/40/19 size tire is 26.7" tall. That info could have been wrong so I'll give it the benefit of the dough..
I searched a generic calculator and it states the following:
http://www.miata.net/garage/tirecalc.html
225/40/19 is 26.1" tall
245/40/19 is 26.7" tall.
front
245/35/20 is 26.8” tall a 2.6% difference
245/30/20 is 25.8" tall a 1.1% difference
255/30/20 is 26.0" tall a -.2% difference – very close
rear
275/35/20 is 27.6" tall a 3.2% difference
275/30/20 is 26.5" tall a -.8% difference
285/30/20 is 26.7" tall a .1% difference – very close
based on this new info I would say a 255/30/20 and 285/30/20 is your best bet on a 9” and 10” rim respectively. Like I said each tire varies slightly these numbers might not apply to the brand of tire you get, so ask before you buy.
I searched a generic calculator and it states the following:
http://www.miata.net/garage/tirecalc.html
225/40/19 is 26.1" tall
245/40/19 is 26.7" tall.
front
245/35/20 is 26.8” tall a 2.6% difference
245/30/20 is 25.8" tall a 1.1% difference
255/30/20 is 26.0" tall a -.2% difference – very close
rear
275/35/20 is 27.6" tall a 3.2% difference
275/30/20 is 26.5" tall a -.8% difference
285/30/20 is 26.7" tall a .1% difference – very close
based on this new info I would say a 255/30/20 and 285/30/20 is your best bet on a 9” and 10” rim respectively. Like I said each tire varies slightly these numbers might not apply to the brand of tire you get, so ask before you buy.
#9
#10
#11
Thats probably because the sizes given by manufacturers and distributors are not always the same. Add to that the fact that size varies slightly by brand and you got a big pot full of confusion and misinformation. Some people run 35 series because they want a little more cushion to protect their rims, some do it because that is what the store at time of purchase recommended they use. I know most stores where I live say that 35 series up front is the correct size when you run 20's.
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