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Author Topic: tyre sizes  (Read 978 times)

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doog

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tyre sizes
« on: 16 May 2009, 01:52:10 »

Is it possible to fit wider tyres to my existing rims
at present i have 225/55/16 tyres on the car and wondered if those wheels could take a wider tyre and if so how wide can i go?

Doug
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nick v6

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Re: tyre sizes
« Reply #1 on: 16 May 2009, 07:23:11 »

it all depends on the j of the wheel

best thing to do is goto a tyre company and get there advice

but remember the wider the tyre the lower the profile to keep the rolling radius the same :y
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cem_devecioglu

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Re: tyre sizes
« Reply #2 on: 16 May 2009, 08:25:00 »

unless you race, a wider tire will be useful for lightening your wallet..

although may stay nice on miggy , will consume more fuel and brake pads..and lessen the life of hydraulic steering pump..
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KillerWatt

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Re: tyre sizes
« Reply #3 on: 16 May 2009, 09:33:46 »

Quote
but remember the wider the tyre the lower the profile to keep the rolling radius the same :y
Increasing the tyre width will not affect the rolling radius.
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nick v6

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Re: tyre sizes
« Reply #4 on: 16 May 2009, 09:42:04 »

Quote
Quote
but remember the wider the tyre the lower the profile to keep the rolling radius the same :y
Increasing the tyre width will not affect the rolling radius.

yes it will
if you have a 205/55r16 tyre and increase the tyre width to a 225/55r16
then the rolling radius will be different

the wider the tyre the lower the profile needed to keep the rolling radius the same
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Welung666

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Re: tyre sizes
« Reply #5 on: 16 May 2009, 09:50:32 »

Quote
Quote
Quote
but remember the wider the tyre the lower the profile to keep the rolling radius the same :y
Increasing the tyre width will not affect the rolling radius.

yes it will
if you have a 205/55r16 tyre and increase the tyre width to a 225/55r16
then the rolling radius will be different

the wider the tyre the lower the profile needed to keep the rolling radius the same

You're right Nick. The 55 part is a percentage of the tyre width so a 225/55 is 225mm wide tread and the profile is 55% of that or 123.75mm :y
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nick v6

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Re: tyre sizes
« Reply #6 on: 16 May 2009, 09:55:07 »

Quote
Quote
Quote
Quote
but remember the wider the tyre the lower the profile to keep the rolling radius the same :y
Increasing the tyre width will not affect the rolling radius.

yes it will
if you have a 205/55r16 tyre and increase the tyre width to a 225/55r16
then the rolling radius will be different

the wider the tyre the lower the profile needed to keep the rolling radius the same

You're right Nick. The 55 part is a percentage of the tyre width so a 225/55 is 225mm wide tread and the profile is 55% of that or 123.75mm :y

thankyou lee :y
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Andy B

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Re: tyre sizes
« Reply #7 on: 16 May 2009, 11:48:17 »

Quote
Quote
Quote
Quote
Quote
but remember the wider the tyre the lower the profile to keep the rolling radius the same :y
Increasing the tyre width will not affect the rolling radius.

yes it will
if you have a 205/55r16 tyre and increase the tyre width to a 225/55r16
then the rolling radius will be different

the wider the tyre the lower the profile needed to keep the rolling radius the same

You're right Nick. The 55 part is a percentage of the tyre width so a 225/55 is 225mm wide tread and the profile is 55% of that or 123.75mm :y

thankyou lee :y

I agree with you too!  :y  :y  :y
If you go up in width, the profile needs to go down!  :y
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doog

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Re: tyre sizes
« Reply #8 on: 17 May 2009, 01:15:50 »

OK  i will be a little more specific

I want to fit wider tyres to my rear wheels
i have the 16 inch elite wheels on the car
can i take it to 245/55/16  etc?
any btw i know it will cost more

Doug
« Last Edit: 17 May 2009, 20:18:37 by doog »
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doog

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Re: tyre sizes
« Reply #9 on: 17 May 2009, 20:18:58 »

i guess no one knows then ?
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nick v6

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Re: tyre sizes
« Reply #10 on: 17 May 2009, 20:20:53 »

Quote
i guess no one knows then ?

it all depends on the j of the wheel
with out seeing the wheel to measure the j then i cant tell you if they wider tyres will fit or not
going by memory i dont think they will fit
best thing to do is get yourself to a tyre shop and get them to measure the j and they will tell you if a wider tyre can go on or not :y
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doog

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Re: tyre sizes
« Reply #11 on: 17 May 2009, 20:27:42 »

wheels are 7j

Doug
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nick v6

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Re: tyre sizes
« Reply #12 on: 17 May 2009, 20:32:14 »

i think your about maxed out there mate
maybe able to drop a 235 on the back :y
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mantagte

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Re: tyre sizes
« Reply #13 on: 17 May 2009, 21:35:07 »

http://www.carbibles.com/tyre_bible_pg2.html
check this site out all good advice
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DC

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Re: tyre sizes
« Reply #14 on: 18 May 2009, 21:23:30 »

you for sure shouldn't put 245/55/16. These ones have similar radious: 225/55R16 - 235/50R16 - 245/45R16.
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