Anyone in Auckland got a Rota Grid V I could test fit?

[RomanV]

Hey,

Just wanting to get an idea of what sort of brake clearance etc there is, before committing to a set of these (15x8 or similar)

I'm thinking that the more dishy type of wheels probably dont have much caliper clearance.

If anyone in AKL has one I could (very carefully) borrow briefly, would be much appreciated!

Or does anyone know a shop in AKL that stocks them where I could test fit?

Cheers.

[Rick]

Just remember if you are going for a cert you will need a minimum of a 215mm wide tyre for a 8" rim

[B_giB]

Try Tsoob.

[tsoob]

Just remember if you are going for a cert you will need a minimum of a 215mm wide tyre for a 8" rim

yup dealing with this headache at the moment..

the cert system is $&#$%.

you can cert a 235 on a 9.5 in 18"
and also a 215 on an 8.5 in 18"

but not a 205 on an 8" in 15"

have been takling to almost everyone at the moment to try get this rectified.

and i have the grid v what fitment do you need best to come and see me bro

Nick

[wde_bdy]

It's not a cert system problem, The law simply says a tyre must be a suitable fitment for the rim. Tyre manufacturer determines what rim width is suitable for their tyres and you do get the odd variation from different manufacturers. Profile is the bigest determining factor on what manufacturers will permit, my 245/35 17's can go to 9.5" where as a 245/45 17 can only go up to 9".
What will get really interesting is when they get around to enforcing it for WoF's.

Callum

[B_giB]

Unfortunatly its more than a law thing, Its also an industry standards thing. My ETRTO book is like the bible, and all the fitments they had on the LVV website is spot on the the ETRTO.

[tsoob]

It's not a cert system problem, The law simply says a tyre must be a suitable fitment for the rim. Tyre manufacturer determines what rim width is suitable for their tyres and you do get the odd variation from different manufacturers. Profile is the bigest determining factor on what manufacturers will permit, my 245/35 17's can go to 9.5" where as a 245/45 17 can only go up to 9".
What will get really interesting is when they get around to enforcing it for WoF's.

Callum

when you look at the tyre chart, and if you actually talk to any of the certifiers, they all agree that the chart is outdated.

Simple fact is that the cert rules are written by hot rod guys and are not up to date with what goes on with modern cars.

[wde_bdy]

How does a certifier know more about tyre fitment than the manufacturer? You can fit a tyre to whatever rim the manufacturer says it is suitable for, nothing to do with hot rod guys writing the rules at all.

Callum

[Mr Ree]

It wouldnt be a big problem for most of us that want to have correct tyre/wheel fitment.

Have the cert rules been changed in the past few years to try and stop the silly fitments we see rolling around the streets, or has it always been the same?

[tsoob]

It wouldnt be a big problem for most of us that want to have correct tyre/wheel fitment.

Have the cert rules been changed in the past few years to try and stop the silly fitments we see rolling around the streets, or has it always been the same?

We are not advocating unsafe fitments.

Some tyre manufacturers allow a 205 on an 8 but the LVV people are stuck in their ways.

This is something i have been working on over the last few months with a certifier and with Land transport themselves.

Callum, you can hate all you like, simple fact is that wheel fitments are changing faster than laws do, that's pretty normal.

how is it 'safe' for a s215 35 18 on an 18x8.5 but not 'safe' for a 205 50 15 on 15x8. its the same 'stretch' but has MORE sidewall, if anything its safer.

[Mr Ree]

It wouldnt be a big problem for most of us that want to have correct tyre/wheel fitment.

Have the cert rules been changed in the past few years to try and stop the silly fitments we see rolling around the streets, or has it always been the same?

We are not advocating unsafe fitments.

Just to clarify, my comment wasnt directed at you or anyone inparticular, it was just a general question.

[tsoob]

It wouldnt be a big problem for most of us that want to have correct tyre/wheel fitment.

Have the cert rules been changed in the past few years to try and stop the silly fitments we see rolling around the streets, or has it always been the same?

We are not advocating unsafe fitments.

Just to clarify, my comment wasnt directed at you or anyone inparticular, it was just a general question.

nah i know that.. im really just pointing out the flaws in the law more an anyones comments directly

[duddley]

Can someone please explain what the benefits of running stretched tyres are?

[1I1]

Looks or clearance issues

Slight stretch can look good though then theres this

[siren676]

Slight stretch as is alright. Tsoob and i are trying to get 195/45-15's on 15x8's through certs and i'd hardly call it a lot of stretch.

[GTTpower]

Thicker sidewall helps make it look less stretched.

Ive got a 225 on a 9", looks quite stretched with a 35 section sidewall

[d1 mule]

gots to remember regardless what cert man says if the tire manufacturer states a 135 can fit on a 12" rim its ok.

[Bling]

Can someone please explain what the benefits of running stretched tyres are?

Only practical reason IMO is when your car is so low you need to stretch a tyre to fit to eliminate guard rub. Or if the wheels don't fit the car properly and the tread sticks out past the guard. If a car isn't in that situation then it's just to look cool I guess. Stance, whatever kids call it these days.

[Looonie]

Stretched sidewalls originally came about because young people were too poor to buy expensive tyres with stiff sidewall design, or wide tyres to fit the rims they had, so skinnier tyres stretched to a wider rim was a) cheaper to buy, b) provided additional sidewall stiffness to counter the tyre rolling over under cornering. Originated in Japan many many years ago.

Now its evolved into a stance thing, pushing the wheel outside the guard and stretching a tyre to clear the guard lip, or just to look retarded (when you go overboard, as many seem to do now). The same original reasons are still valid, though not applicable to most people who stretch these days who have more money than sense.

[tsoob]

Slight stretch as is alright. Tsoob and i are trying to get 195/45-15's on 15x8's through certs and i'd hardly call it a lot of stretch.

again... does anyone here feel that this is 'unsafe'