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Tyre Size
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Author:  ZookiBoi [ Wed Mar 07, 2012 12:52 pm ]
Post subject:  Tyre Size

Hi people,

What is the biggest size all terrain tyre i can put on my sierra 1.3ltr without having to change gearing or having it affect my top end speed?

Thanks.

Author:  mnemonix [ Wed Mar 07, 2012 12:54 pm ]
Post subject:  Re: Tyre Size

If you specifically want AT's, without gearing or changes to your onroad characteristics, you'd be best advised to stick to the factory size.

Author:  ZookiBoi [ Wed Mar 07, 2012 1:00 pm ]
Post subject:  Re: Tyre Size

So I can't go ANY bigger without changing anything?

Author:  mnemonix [ Wed Mar 07, 2012 1:05 pm ]
Post subject:  Re: Tyre Size

You can, but why do you want to?
You could go from 205/70 to 215/70, but with AT's the offroad experience will barely improve if at all, and you'll have a smaller selection of tyres to choose from.

Author:  abclarke [ Wed Mar 07, 2012 1:08 pm ]
Post subject:  Re: Tyre Size

Someone can correct me if im wrong, but if he HAS to stay to that size, wouldnt it be better going for a mud terrain? Dunno what hes after though, better off road or just something bigger?

Author:  Rossco [ Wed Mar 07, 2012 1:13 pm ]
Post subject:  Re: Tyre Size

Do they even make a mud terrain in 205/70? But what's the point? I would save my money for when I destroyed something for lack of ground clearance.

Author:  ZookiBoi [ Wed Mar 07, 2012 1:57 pm ]
Post subject:  Re: Tyre Size

I mainly want just bigger tyres bit more clearance and stuff I hardly ever drive in really muddy stuff

Author:  royce [ Wed Mar 07, 2012 2:01 pm ]
Post subject:  Re: Tyre Size

Sierras have no power and barely good enough gearing standard, if I ever owned one again I would change the gearing even if I planned to keep standard tyres on it

Author:  ZookiBoi [ Wed Mar 07, 2012 2:23 pm ]
Post subject:  Re: Tyre Size

Well I would change gearing I guess If I had any clue how to do it. But I dont

Author:  abclarke [ Wed Mar 07, 2012 3:02 pm ]
Post subject:  Re: Tyre Size

Thered be plenty of guys on here who wouldnt mind helping out for a beer... or a case :P

Author:  Reubs [ Wed Mar 07, 2012 3:19 pm ]
Post subject:  Re: Tyre Size

ZookiBoi wrote:
What is the biggest size all terrain tyre i can put on my sierra 1.3ltr without having to change gearing or having it affect my top end speed?

IMO 215/75R15. I run M/Ts in this size with standard gearing and a 1.3 and have no trouble cruising on the highway at the speed limit - even up Brisbane's Gateway Bridge.

Author:  whincup [ Wed Mar 07, 2012 7:37 pm ]
Post subject:  Re: Tyre Size

x2 on the 215/75... no bigger if you plan on doing rockcrawling. having said that, i ran 31's on stock WT gearing for a while, and its fine on sand and in mud, just be warned, low range gets a lot of use, and 5th gear wont get touched even on highways ;-)

BFG does AT and MT tyres in the 215/75 size, dont know what other companies do

Author:  ZookiBoi [ Thu Mar 08, 2012 10:51 am ]
Post subject:  Re: Tyre Size

Ok thanks very much guys I really appreciate it :)

Author:  fully sick coily [ Thu Mar 08, 2012 4:12 pm ]
Post subject:  Re: Tyre Size

mate,
i gotta stock as a rock coily with 30" maxxis buckshots
no lift or any thing and its fine

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