Author Topic: 15" or 16"?  (Read 4052 times)

Lord Voltermore

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Re: 15" or 16"?
« Reply #30 on: March 20, 2023, 09:33:17 AM »
1/2 " difference in side wall height is an  approximation.  Higher tyre walls make up the 1" difference in diameter between  15" and 16" wheels , ie  1/2" more  height between the wheel and the road, and 1/2"  more at the top of the wheel where it makes no difference to handling etc.

To be more accurate  the profile of the tyre as shown in  tyre size  , eg 185/60/R15,  is a percentage of the tread width.   . Thus 60% of 185 mm is 111m  side wall    while its 16" equivalent  185/55/R16   is 55% of the same 185mm tread width  ie only   101.75 mm   .  10mm less (approx) ,  which is 0.4 " , not quite half an inch.   Not only that but measurement will be of a curved rubber side wall, not just the extra height between wheel rim and road surface.   

Things get more complicated if tread width changes.  For instance  a 195/60/R15 tyre side wall is 60% of 195  =  117 mm not 111mm

 
  I will fix that dripping tap.  No need to keep reminding me every 3 months.

Nicksey

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Re: 15" or 16"?
« Reply #31 on: March 20, 2023, 11:30:09 AM »
1/2 " difference in side wall height is an  approximation.  Higher tyre walls make up the 1" difference in diameter between  15" and 16" wheels , ie  1/2" more  height between the wheel and the road, and 1/2"  more at the top of the wheel where it makes no difference to handling etc.

To be more accurate  the profile of the tyre as shown in  tyre size  , eg 185/60/R15,  is a percentage of the tread width.   . Thus 60% of 185 mm is 111m  side wall    while its 16" equivalent  185/55/R16   is 55% of the same 185mm tread width  ie only   101.75 mm   .  10mm less (approx) ,  which is 0.4 " , not quite half an inch.   Not only that but measurement will be of a curved rubber side wall, not just the extra height between wheel rim and road surface.   

Things get more complicated if tread width changes.  For instance  a 195/60/R15 tyre side wall is 60% of 195  =  117 mm not 111mm

Thats as maybe, but were the Jazz is concerned and the difference between the Honda wheel options available... does it really make that much difference in driveability regarding bumps in the road?  ;)

Lord Voltermore

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Re: 15" or 16"?
« Reply #32 on: March 20, 2023, 12:22:29 PM »

Thats as maybe, but were the Jazz is concerned and the difference between the Honda wheel options available... does it really make that much difference in driveability regarding bumps in the road?  ;)
I dont think so. Having a different brand of tyre can make just  as much difference IMO
  I will fix that dripping tap.  No need to keep reminding me every 3 months.

5thcivic

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Re: 15" or 16"?
« Reply #33 on: March 20, 2023, 06:14:17 PM »
I test drove both before paying for the diamond cut alloys and definitely felt the smaller wheels were better on our poor surfaces. Did the same with the E and got the 16in option instead of the standard 17in.

Kremmen

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Re: 15" or 16"?
« Reply #34 on: March 21, 2023, 04:47:32 AM »
If the choice of wheels was a no cost option or minimal cost I would have looked closer but I don't see the logic of paying full price for another set of wheels meaning you are paying for 8 wheels.
Let's be careful out there !

5thcivic

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Re: 15" or 16"?
« Reply #35 on: March 22, 2023, 12:38:23 PM »
Who paid for 8 wheels?

Kremmen

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Re: 15" or 16"?
« Reply #36 on: March 22, 2023, 12:55:06 PM »
If you use the configurator and specify different wheels, the prices I've seen look to me like full price ?

When the car arrives all you get is the wheels you've paid extra for, in addition to the car base price that includes 4 wheels.

So using that logic you've paid for 4 standard fit wheels and your 4 chosen wheels ?
Let's be careful out there !

5thcivic

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Re: 15" or 16"?
« Reply #37 on: March 22, 2023, 01:25:11 PM »
If you're stupid enough not to negotiate maybe. Otherwise you pay around 500 for diamond cut wheels which look a lot better than the standard with a more comfortable ride as part of a total deal with the other extras ;)

Kremmen

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Re: 15" or 16"?
« Reply #38 on: March 22, 2023, 01:27:44 PM »
I'm quite happy with the plastic covers. My Xantias had similar and they're easier to clean IMO.
Let's be careful out there !

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