Wider tyres on standard 15" wheels
- Thread starter ndavid
- Start date
ianjohnsonws14
Member
The tyre dealer will tell you what will fit the rims, this website http://www.miata.net/garage/tirecalc.html will tell you how they will affect the speedo reading. As for width from some posts on here even the standard tyres on the sports can rub so be wary of width.
bye_bye_alfa
Member
norbs...
it's quite easy to work out for yourself, what will affect the speedo etc.
you have 175/60 x15. the 175 is 175mm wide, the 60 bit it the profile (height) but it's a percentage of the width so 1.75 x 60 = 105mm. Obviously the last bit is your rim size.
As far as I was told, as long as you keep the rolling radius the same... i.e. 105 in your case... you can change the size of your tyres... pay attention to scrubbing though, and there is a maximum size befor your rim becomes too narrow... by my calcs, 205/50R15 would give you a profile height of 102.5.
hth
bba
it's quite easy to work out for yourself, what will affect the speedo etc.
you have 175/60 x15. the 175 is 175mm wide, the 60 bit it the profile (height) but it's a percentage of the width so 1.75 x 60 = 105mm. Obviously the last bit is your rim size.
As far as I was told, as long as you keep the rolling radius the same... i.e. 105 in your case... you can change the size of your tyres... pay attention to scrubbing though, and there is a maximum size befor your rim becomes too narrow... by my calcs, 205/50R15 would give you a profile height of 102.5.
hth
bba
vansterdam
Member
Here's a better tire size calculator that includes other info like recommended rim width range.
richardaudi0
Member
On the same theme, when I change tyres on my TDI 75 SE I want a little more comfort from the standard 185/50 R16s, so would a 195/55 R16 fit? This, I think, would give a little more sidewall height, therefore increasing comfort slightly, and also correct some of the speedo inaccuracy. Also, does anyone have any thoughts as to the quietest tyres? I've read a lot of good reports on this forum about Kumho tyres — are they reasonably quiet?
Thanks
Thanks