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Old 12-15-2019, 06:03 AM   #1
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steering wheel size

Question? been trying to find the dimensions of the four spoke and three spoke steering wheels. Thinking of upgrading to the three spoke but if the size is identical, it may not be worth the investment. Also, been thinking of going completely aftermarket ( pricey), but with a air bag and flat bottom of steering wheel for more leg room. Anyone have any suggestions.

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Old 12-15-2019, 08:17 AM   #2
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I'm pretty sure the wheel diameters are the same & I'm positive the 3 spoke is better.
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Old 12-15-2019, 08:34 AM   #3
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I replaced my 4 spoke with a 3 spoke a few months ago. They were the same size/diameter, but the 3 spoke adds at least 10 IHP.
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Old 12-15-2019, 08:48 AM   #4
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Originally Posted by SMK Shoe View Post
...and flat bottom of steering wheel for more leg room. Anyone have any suggestions.
I've seen those flat bottom steering wheels around, but couldn't understand the functional purpose.

If it's for leg room, don't you need just as much leg room when you're turning?
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Old 12-15-2019, 09:34 AM   #5
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I still have my OG 4-spoke and airbag. Hated. It. IMHO... 4 spoke steering wheels are for sedans, not **************** Porsches.

I purchased and installed the 3-spoke steering wheel... looks much nicer... and looks like it belongs in the car.
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Old 12-15-2019, 09:46 AM   #6
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Quote:
Originally Posted by SMK Shoe View Post
Question? been trying to find the dimensions of the four spoke and three spoke steering wheels. Thinking of upgrading to the three spoke but if the size is identical, it may not be worth the investment. Also, been thinking of going completely aftermarket ( pricey), but with a air bag and flat bottom of steering wheel for more leg room. Anyone have any suggestions.
Both are 38cm.

Last edited by particlewave; 12-16-2019 at 09:10 PM.
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Old 12-15-2019, 01:40 PM   #7
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I've seen those flat bottom steering wheels around, but couldn't understand the functional purpose.

If it's for leg room, don't you need just as much leg room when you're turning?
It offers additional clearance space between the wheel and the top of your thighs. Very welcome 'wiggle room' whilst travelling along for long distances with the wheel centered, such as on the freeway.

Once you try it, you will not want to go back to round.

Mine below. Note the blue thread, tied to the color of the car.




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Old 12-16-2019, 03:53 PM   #8
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I’ve got a flat bottomed wheel as well. This particular wheel is smaller overall as well. For me it is 100% a leg thing. Due to a hip issue, I was having a difficult time getting into the car with the stock wheel. The flat bottom makes it much easier. I will admit it is a little odd when doing full rotations, but it’s not a big deal, and I like the way it looks. Plenty of race wheels with flat bottoms...
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Old 12-16-2019, 07:27 PM   #9
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I also really like my smaller diameter, flat bottom, thicker rim wheel for the reasons already mentioned. Driving my wife’s S5 (which comes standard with this type of wheel) sold me.

Cocoa with silver stitching to match my 550SE interior.




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Old 12-20-2019, 05:57 AM   #10
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Last two pictures are what I'm looking for. Thicker wheel, flat bottom and smaller diameter. I like the three spoke much better. I'm looking for just a little more space than stock at the bottom of the wheel. Just not sure where to start the process of upgrading.
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Old 12-20-2019, 09:02 AM   #11
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Originally Posted by SMK Shoe View Post
Last two pictures are what I'm looking for. Thicker wheel, flat bottom and smaller diameter. I like the three spoke much better. I'm looking for just a little more space than stock at the bottom of the wheel. Just not sure where to start the process of upgrading.
I ordered mine from Ivan at DCTMS in California. The wheel is actually manufactured in Taiwan IIRC. You can find their phone number on their website.

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