Need Tire Size Advice - Hyundai Forums : Hyundai Forum
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#1 Old 09-24-2009, 09:38 AM
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nspackrat
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Don't want to pay the price for 18" winter tires and rims for my 09 Santy so I'm looking at 16" tires. Basically I need to know what width of 16" tire I need to keep the same tire height as the 235/60/R18 all seasons.

Thanks...
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#2 Old 09-24-2009, 10:16 AM
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Check tirerack.com for the widest selection and tons of information like that.

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#3 Old 09-24-2009, 12:56 PM
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QUOTE (nspackrat @ Sep 24 2009, 06:38 AM)
Quote:
Don't want to pay the price for 18" winter tires and rims for my 09 Santy so I'm looking at 16" tires. Basically I need to know what width of 16" tire I need to keep the same tire height as the 235/60/R18 all seasons.

Thanks...
235/70-16 will put you within 0.5% of the originals.

I also dumped my "space saver" spare for one of these mounted on a cheap 16" rim.

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#4 Old 09-24-2009, 05:53 PM
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QUOTE (jsinton @ Sep 24 2009, 09:16 AM)
Quote:
Check tirerack.com for the widest selection and tons of information like that.
Or you can go here and save it in your favourites for later...

http://www.miata.net/garage/tirecalc.html
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#5 Old 09-24-2009, 05:58 PM
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smit
235/70/16 or 225/70/16...either will work. As for rims...if you have a Costco membership you can pick up their 16" multi-fit (X42655) for $43+tax each. I believe Canadian Tire sells these rims too (made by Macpek). Or, if you want the hub-centric rims, those are product number X42652 but you'd have to have your local tire shop order those from Macpek. They are not in the Macpek catalogue...but they do make them, and they do have stock. I'd recommend the extra effort to get the hub-centric wheels. Hope this helps/Jeff.
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#6 Old 09-24-2009, 09:10 PM
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QUOTE (smit @ Sep 24 2009, 04:58 PM)
Quote:
235/70/16 or 225/70/16...either will work. As for rims...if you have a Costco membership you can pick up their 16" multi-fit (X42655) for $43+tax each. I believe Canadian Tire sells these rims too (made by Macpek). Or, if you want the hub-centric rims, those are product number X42652 but you'd have to have your local tire shop order those from Macpek. They are not in the Macpek catalogue...but they do make them, and they do have stock. I'd recommend the extra effort to get the hub-centric wheels. Hope this helps/Jeff.

By my calcs (see below), 225/70/16 will be almost 3/4 inch smaller in diameter, where as the 235/70/16's are less than 2/10 of an inch different. Personally, I'd go with the 235's, not only because of the diameter, but also the contact patch stays the same (you did say they were snow tires, right?)

OEM tire/rim
235mm x .6 aspect ratio x 2 = 282 mm
282 mm/25.4 (mm per inch) = 11.1 inches. (of actual tire sidewall)
11.1 inches + 18 inch rim = 29.1 inch diameter

proposed snow tire/rim
235 mm x .7 aspect x 2 = 329 mm
329/25.4 (mm per inch) = 12.95 inches of tire sidewall
12.95 plus 16" rim = 28.95 inch diameter

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#7 Old 09-25-2009, 09:24 AM
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nspackrat
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Great information everyone. The 235/70R16 definitely seems to be the tire to go with. I'll also try to get the Makpec hubcentric wheels.

Just one more question - what do you think of the Uniroyal TigerPaw snow and ice tires. They are available locally in the 235/70R16 and reasonably priced but they are not H speed rated. I really don't do any highway driving in the winter so would a lower speed rating be OK?

Thanks again
Russ
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#8 Old 09-25-2009, 12:11 PM
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Below is from Tire Rack... I'm sure you'll be fine

L 75 mph 120 km/h Off-Road & Light Truck Tires
M 81 mph 130 km/h
N 87 mph 140km/h Temporary Spare Tires
P 93 mph 150 km/h
Q 99 mph 160 km/h Studless & Studdable Winter Tires
R 106 mph 170 km/h H.D. Light Truck Tires
S 112 mph 180 km/h Family Sedans & Vans
T 118 mph 190 km/h Family Sedans & Vans
U 124 mph 200 km/h
H 130 mph 210 km/h Sport Sedans & Coupes
V 149 mph 240 km/h Sport Sedans, Coupes & Sports Cars

The Liver is Evil and must be punished.
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#9 Old 09-25-2009, 12:15 PM
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I've seen problems with UniRoyal Tiger Paws failing road force balance. I went through 9 brand new tires to get 4 that would pass a roadforce balance for my friend's Vibe.
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#10 Old 09-25-2009, 12:17 PM
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oh, and make sure you buy open wheel nuts for your steel wheels. You will damage the OEM wheel nuts using them on a steel wheel and then your 18 inch wheels will look like crap!
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