Size isn't everything

An old question for which I can never seem to get a straight answer.

I have replaced my standard rims and rubber with wolf wheels and a suitable spec of rubber, cant remeber the exact size but I don't think it realy matter in this context as the importand thing is the combination is mutch bigger than the original.

The question is, what effect will this have on the reading I get from the speedo and the milage clock.

My simple physics suggests to me that with bigger wheels I should be travelling futher and therefore faster than the smaller wheels.

Am I right and if so how do I work out the diff, I have managed to do 25 years of driving without getting a SPXX and I'd like it to stay that way.

Any help in understanding this would be much appreciated.

Martyn

do a google , there are a few web pages that have the info yer after. Be armed with old tyre size and new tyres size

Bigger diameter tyres make the speedo read LOW.

CharlesY

if u can get hold of a gps device either a sat nav or a speed cam detector that displays speed this will give u a reading of your true speed most speedos r about 3mph out at 80mph on the speedo my landy is only doing 75mph

If you know your tyre size before and after you can get the specs on a tyre site eg BF Goodrich then its juts a matter of working out the % increase and apply it to yur speed readout. Mind if you have a gps its easier to do a few constant speed readings and interpolate IMHO

Smaller wheels better acceleration less top end speed

Bigger wheels less acceleration more top end speed

Change wheel tyre size will alter the speedo reading marginally.

Stick it on a set of 13"s and slam it to the ground

sara said:

Smaller wheels better acceleration less top end speed

Bigger wheels less acceleration more top end speed

Change wheel tyre size will alter the speedo reading marginally.

Stick it on a set of 13"s and slam it to the ground

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yer wrong but then a wumum's place is in the wrong.

wheels size hasn't got much to do with it, its the rolling circumference of the tyre thats important as this is the thing that changes your overall gearing. yer could, in theory anyway, have 13" wheels and still have more ground clearance than one fitted with 16" wheels.

as fer slammin it to the ground, well thats just so barry, spechusly on a orf roader.

Well thats just plain stupid

If you are gonna go to the trouble of fitting bigger or smaller wheels then you arent gonna then fit tyres to make the wheels the same size as they were before...(male Logic at its best)

Smaller wheels and tyres improves acceleration and reduces top end speed .Ok Im basing that on a car but cant see how it would differ on a Landy.

Slob bring yourself into the modern world......of 'chavtastic cars'

Car Bibles : The Wheel and Tyre Bible Page 1 of 2

Will this help you?

sara said:

Well thats just plain stupid

If you are gonna go to the trouble of fitting bigger or smaller wheels then you arent gonna then fit tyres to make the wheels the same size as they were before...(male Logic at its best)

Smaller wheels and tyres improves acceleration and reduces top end speed .Ok Im basing that on a car but cant see how it would differ on a Landy.

Slob bring yourself into the modern world......of 'chavtastic cars'

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ffs ! yer silly sod. how the fook can yer put 13" wheels on and slam it into ground with tyres that give yer the same overall height?

go back to the kitchen sink will yer and leave tecnickle matter to us males

slob said:

go back to the kitchen sink will yer and leave tecnickle matter to us males

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And that attitude is what makes this country the ****e hole it is

Go back to your own corner you forum bully

Dun you live in france too

Yer, which ****ry? He int makin this wun ****e, he's werkin on Froggieland at the mo'.

well if yur wint get ideas above yer station yer wint need to told where yer should be. unless yer can explain how you can put 13" wheels on and lower yer veehickill but keep the overall dia. of yer wheel/tyre combo the same yer really would be best sticking to making the tea and serving the scones

Ere, Sirus, you doin' yer bit ter make this ****ry ****e?

I try, but sometimes I feel it's just not enuf.

hey carpet ! did yer see yer favorite non lawyer wur in last night?

Well I just sent the wife out in the rain to fetch somat for me

slob said:

yer really would be best sticking to making the tea and serving the scones

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An' buns, gotta be buns. Spesh them ones wiht the beeeeeeg lumps o' shugger on 'em. Fkn loves them I do.

slob said:

hey carpet ! did yer see yer favorite non lawyer wur in last night?

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Nah? Aww, gutted I missed the lil' ****head.

Grippa said:

An' buns, gotta be buns. Spesh them ones wiht the beeeeeeg lumps o' shugger on 'em. Fkn loves them I do.

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Ooh and custard filled donuts wiv caramel icin......go on puurleeeeses