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Old 03-09-2013, 02:03 AM   #1
Slow5oh
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Default Will any of these size tires be ok?

I'm looking to buy a set of Direzza ZII tires but they don't make them in the factory size for my Beetle which is 235/45/18. These are the closest ones to the factory size:

225/40/18
235/40/18
245/40/18
255/35/18

It will soon have close to 400 lb-ft of torque so I'm leaning towards the wider ones. Will it even matter all that much
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Old 03-09-2013, 02:15 AM   #2
sc00by4life
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what size wheel?
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Old 03-09-2013, 02:20 AM   #3
Slow5oh
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Yea that would be helpful wouldn't it?

8 inch wheel
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Old 03-09-2013, 03:17 AM   #4
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All of those will be too short.
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Old 03-09-2013, 03:38 AM   #5
Slow5oh
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Quote:
Originally Posted by vision.dynamix View Post
All of those will be too short.
Is there anything else besides the speedometer that a shorter sidewall would affect?
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Old 03-09-2013, 08:24 AM   #6
vision.dynamix
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Gearing.

Ride.

Wheel bending.
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Old 03-09-2013, 09:58 AM   #7
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245/40/18 would be closest.

Having been here for nearly 9 years, I figured you would know how/where to calculate tire size.
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Old 03-09-2013, 10:11 AM   #8
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Or see what size the beetle people are running.
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Old 03-09-2013, 07:36 PM   #9
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Quote:
Originally Posted by vision.dynamix View Post
Gearing.

Ride.

Wheel bending.
Can you elaborate a little more? I understand the gearing portion but how much will my ride be affected with the different sidewall sizes? Will it be enough that I will notice it say going from a 45 to a 40?

Quote:
Originally Posted by nhat View Post
245/40/18 would be closest.

Having been here for nearly 9 years, I figured you would know how/where to calculate tire size.
My original post wasn't very clear. I used the miata tire size calculator but I was looking more for how the car will be affected with each change in tire size. If the effects are drastic then I'll go for a different tire that comes in the factory size.
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Old 03-09-2013, 07:37 PM   #10
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Quote:
Originally Posted by vision.dynamix View Post
Or see what size the beetle people are running.
I think we've all seen how most VW owners like their tires and I don't do that.
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Old 03-09-2013, 07:42 PM   #11
vision.dynamix
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Quote:
Originally Posted by Slow5oh View Post
Can you elaborate a little more? I understand the gearing portion but how much will my ride be affected with the different sidewall sizes? Will it be enough that I will notice it say going from a 45 to a 40?
Having a shorter sidewall gives you less cushion between the wheel and the road.
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Old 03-10-2013, 12:42 PM   #12
NJD
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Old 03-10-2013, 10:37 PM   #13
ABeastinWRX
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Not seeing why this is so hard? O.o
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Old 03-10-2013, 11:29 PM   #14
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Quote:
Originally Posted by nhat View Post
245/40/18 would be closest.

Having been here for nearly 9 years, I figured you would know how/where to calculate tire size.
This.
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