Whats the best tire size for 20" rims [Archive] - Drive Accord Honda Forums

: Whats the best tire size for 20" rims


mystick6
03-12-2009, 10:20 PM
I currently have 20 x 8.5 rims on my 2008 Honda Accord EXL Sedan with 225/35/R20 tires. I wanted to know if this low of a tire isnt good for my rims? Should I get a tire with more sidewall? If so whats the best tire size for my set up, Im lowered on H&R springs. Any advice is appreciated.:thmsup:

morcheez
03-12-2009, 10:33 PM
245/35 would be better imo...thats what i have and the sidewall is pretty decent

lebomb
03-13-2009, 12:10 PM
245/35 would be better imo...thats what i have and the sidewall is pretty decent


The 35 is the sidewall height...........your 245 is the width......so your tires are wider than his, but have the same sidewall height. :thmsup:

xJoeMama78
03-13-2009, 02:22 PM
I currently have 20 x 8.5 rims on my 2008 Honda Accord EXL Sedan with 225/35/R20 tires.

The 35 is the sidewall height...........your 245 is the width......so your tires are wider than his, but have the same sidewall height. :thmsup:

The 225 is the width of the tire in mm. The 35 is not the sidewall height but the aspect ratio. For this tire the sidewall height is 35% of the width, so it is 78.75 mm or ~3.1 in. For the 245/35 tire the sidewall height is 85.75 mm or ~3.38 in, so it is just over a 3/4 inch wider and has a bit over a 1/4 inch taller sidewall.

lebomb
03-13-2009, 07:40 PM
The 225 is the width of the tire in mm. The 35 is not the sidewall height but the aspect ratio. For this tire the sidewall height is 35% of the width, so it is 78.75 mm or ~3.1 in. For the 245/35 tire the sidewall height is 85.75 mm or ~3.38 in, so it is just over a 3/4 inch wider and has a bit over a 1/4 inch taller sidewall.


That may be true, but he has to go up TWO tire widths to go up just 1/4 in side wall height. Is that what he wants to do? :dunno: At the same width the 40s or 45s would have taller side wall for sure. :thmsup:

morcheez
03-13-2009, 11:50 PM
The 35 is the sidewall height...........your 245 is the width......so your tires are wider than his, but have the same sidewall height. :thmsup:

wow completely wrong...do your homework next time bud ....the narrower the tire the more its going to have to stretch to fit so its not going to be as tall either :)

Strippers4Me
03-14-2009, 12:00 AM
Going to run 245/35/20

You need a little meat on the sidewall or you'll be sorry, plus these Accords have HUGE wheel wells

anth6ny
03-14-2009, 07:17 AM
He wouldn't have any troubles with rubbing if he got a bigger sidewall like a 245/40 or 245/45?

lebomb
03-14-2009, 07:23 AM
wow completely wrong...do your homework next time bud ....the narrower the tire the more its going to have to stretch to fit so its not going to be as tall either :)

Ahhhhhhhhh............homework done!!!

Sidewall Aspect Ratio
Typically following the three digits identifying the tire's Section Width in millimeters is a two-digit number that identifies the tire's profile or aspect ratio.

P225/50R16 91S

The 50 indicates that this tire size's sidewall height (from rim to tread) is 50% of its section width. The measurement is the tire's section height, and also referred to as the tire's series, profile or aspect ratio. The higher the number, the taller the sidewall; the lower the number, the lower the sidewall. We know that this tire size's section width is 225mm and that its section height is 50% of 225mm. By converting the 225mm to inches (225 / 25.4 = 8.86") and multiplying it by 50% (.50) we confirm that this tire size results in a tire section height of 4.43". If this tire were a P225/70R16 size, our calculation would confirm that the size would result in a section height of 6.20", approximately a 1.8-inch taller sidewall.

xJoeMama78
03-14-2009, 09:47 AM
He wouldn't have any troubles with rubbing if he got a bigger sidewall like a 245/40 or 245/45?

It probably wouldn't rub, but 245/40 would be two inches taller than stock and 245/45 would be three inches taller. His speedometer would be significantly off, about 7.2% with the 40 series and 10.7% with the 45 series.

lebomb
03-14-2009, 02:08 PM
Hey.......up sizers..........be sure to check your tire pressure. I found mine to be at 30psi all the way around. With low profile tires.............you need to be 40-45 psi or your sidewall will be on the pavement when driving. You will wear out your tires with the quickness. My tires say 51 psi max., so Im running 42psi all the way around.

Strippers4Me
03-19-2009, 01:39 PM
Plug this formula into an Excel spreadsheet:

=(A1*A2)*2/25.4+A3

I use it all the time it will give you a real good idea on how big or small you can go.
As far as the 40 or 45 series, that would be a big ass monster truck tire on your Accord. You also may want to head over to www.1010tires.com and use their calculator.

http://www.1010tires.com/TireSizeCalculator.asp

lebomb
03-19-2009, 01:53 PM
As far as the 40 or 45 series, that would be a big ass monster truck tire on your Accord.




:paranoid: ................. I think Im gonna have to disagree with this one.

Strippers4Me
03-19-2009, 03:05 PM
I was being funny but here are the specs:
25.86 I4
26.33 V6
25.79 245/30/20 Tire Rack Reccomended
26.75 245/35/20 Discount Tire Reccomended
27.03 255/35/20
27.72 245/40/20
28.68 245/45/20 HUGE