Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: Zippy2012 on 24 January 2012, 02:54:25

Title: MV6 tyre sizes????
Post by: Zippy2012 on 24 January 2012, 02:54:25: Hi i have fitted at moment 225/45/17s on the front & 245/40/17s on the rear... but v.soon need changing
& im removing the 17" vectra c alloys due to incorrect offset even tho i love the 5spoke elite alloy, to MV6 10 spokes after ive refurbed them...!! (polished but corroded & no laquer normal prob!)

what tyres sizes should i be running on it??

i have 2 brand new uniroyal 235/45/17s & 2 goodyears & 2 brand new uniroyal 245/40/17s

& a set of 4 235/45/17 part worns

ide like a wider rear with the new tyres i have be ok...

or do i need a 245/45/17 or 255/40/17 rear to match a 235/45/17 on front?? & keep speedo correct???
Title: Re: MV6 tyre sizes????
Post by: adey2 on 24 January 2012, 03:21:44: tyres on mine are 235/45/17
Title: Re: MV6 tyre sizes????
Post by: MV6Matt on 24 January 2012, 08:04:10: 235/45/17 on all 4 if you've got Vaux 17" MV6 alloys
Title: Re: MV6 tyre sizes????
Post by: TheBoy on 24 January 2012, 21:50:03: Standard MV6 size is 235/45ZR17
Title: Re: MV6 tyre sizes????
Post by: P6UL K on 24 January 2012, 22:43:26: http://www.kouki.co.uk/utilities/visual-tyre-size-calculator (http://www.kouki.co.uk/utilities/visual-tyre-size-calculator)
Title: Re: MV6 tyre sizes????
Post by: Zippy2012 on 26 January 2012, 11:59:32: Quote from: P6UL K on 24 January 2012, 22:43:26
http://www.kouki.co.uk/utilities/visual-tyre-size-calculator (http://www.kouki.co.uk/utilities/visual-tyre-size-calculator)

Very interesting... :y

checking from standard 205 65 15 that the Police used to what ive fitted 245 40 17 rears

Differance of -1mph 29 at 30mph & -2mph 58 at 60mph so guessing 90 will be -3ish i know ex cop speedo has been calibrated due2 sticker inside lense & with 225 60 15s i had fitted to it when i bought it did the best mpg, speedo smack on 30 or 60 & said the same on 2 different satnavs & a roadangel..

But on satnav speed atmo im 2/3mph out at 30 (32 speedo) & 3/4mph out at 60 (64 speedo) & 80 on speedo satnav 74/75 maybe because the 2x245/40/17s are nearly breaked only 2mm of tread on them

so i maybe better off fitting a pair of 245 45 17s on rear as they are as close as poss to the 225 60 15s that were bang on the needle & satnav calculations at the mph i was doing.
Title: Re: MV6 tyre sizes????
Post by: Field Marshal Dr. Opti on 26 January 2012, 15:54:20: Quote from: TheBoy on 24 January 2012, 21:50:03
Standard MV6 size is 235/45ZR17

I concur. Michelin's in my case.
Title: Re: MV6 tyre sizes????
Post by: tgm147 on 27 January 2012, 00:20:23: I've got 245/45/17 on the back and 235/45/17 on the front. No problems. That's the biggest you can get on the rim though really.
Title: Re: MV6 tyre sizes????
Post by: Zippy2012 on 27 January 2012, 02:07:03: Quote from: tgm147 on 27 January 2012, 00:20:23
I've got 245/45/17 on the back and 235/45/17 on the front. No problems. That's the biggest you can get on the rim though really.

Cheers might have 2 get 2x 45s...

The 245 40 17s ive got fitted look good on rims & sodz law i bought 4 brand new uniroyals 2x 235/45/17 & 2x 245/40/17 (ok only £120!) But....

...if ide of known before that the 40s wud throw speedo out by 4/5mph ide of bought 45s not 40s! but Acceleration from 90mph to 130 takes about 10seconds or less fkin flys!!!

tryin to find a set of 18/19" alloys but either look crap or stupidly priced!
i can get 18" part worns for like £20/£30 each! but larger 17" gettin harder to find in decent matching treads, but on ebay prices are stupid atmo!! like £90 for 2 with 4mm or less of tread!

Thanks 4 the info that 245 45 17s do the job tho :y
Title: Re: MV6 tyre sizes????
Post by: 2woody on 27 January 2012, 08:47:12: Quote from: P6UL K on 24 January 2012, 22:43:26
http://www.kouki.co.uk/utilities/visual-tyre-size-calculator (http://www.kouki.co.uk/utilities/visual-tyre-size-calculator)

that'll be wrong - don't use it.

at the risk of repeating myself, use only the manufacturer's quoted wheel revs per mile figure.
Title: Re: MV6 tyre sizes????
Post by: 2woody on 27 January 2012, 08:51:51: 245/45 x 17 are less than a percent out
Title: Re: MV6 tyre sizes????
Post by: Zippy2012 on 28 January 2012, 12:38:19: Quote from: 2woody on 27 January 2012, 08:47:12
Quote from: P6UL K on 24 January 2012, 22:43:26
http://www.kouki.co.uk/utilities/visual-tyre-size-calculator (http://www.kouki.co.uk/utilities/visual-tyre-size-calculator)

that'll be wrong - don't use it.

at the risk of repeating myself, use only the manufacturer's quoted wheel revs per mile figure.

Hi checking the calculator there isnt a direct other size to match either the 205 60 15 original police spec or 234 45 17 mv6 spec size either just over or under %

Noticed lastnight that speedo is actually only 1mph out at 30-40 2mph out at 70-80 3mph at 90-100 on the 245 40 17s which i can live with but that is on neer bald tyres so new ones may only be 1mph out??? its just a pain that the wheel arches on an estate are huge & tyres look lost maybe because im using a vectra c alloys wiv a 5mm spacer as offset 41 not omega 33 may have something to do with it?? gota get my genuine 97 mv6 10spoke alloys refurbed then shud b ok....
Title: Re: MV6 tyre sizes????
Post by: TheBoy on 28 January 2012, 16:58:44: As per PM last week, can you refrain from using text speak Zippy2012, cheers :y
Title: Re: MV6 tyre sizes????
Post by: Zippy2012 on 29 January 2012, 23:55:07: Quote from: TheBoy on 28 January 2012, 16:58:44
As per PM last week, can you refrain from using text speak Zippy2012, cheers :y

reading threw my messages ive written i can only see 2 or 3 words in "txt speak" im slightly dislexic so i may use shotened word when i dont know how to spell certain words but sumtimes i dont notice when i use them.... sorry mate i try to read my posts & correct words befor i post them ok...