kjc300

iTrader: (1)

Got some 9x18" RL7's, and need to know what size tyres to get really??

I already have 2 brand new 225/40 -18 F1 gsd3's that I was going to get fitted to my super T's I could maybe use those for the front but get some bigger (wider) ones for the rear??


Escos btw, so need to consider keeping the rolling radius quite close to each other.


Also, what are peoples opinions on using 3mm spacers - I have caliper/spoke issues with the 2 et25's I have (the 2 et20's are fine)??

dave cos4x4

iTrader: (5)

255-245 i would imagine.

kjc300

iTrader: (1)

Just been using this tyre size calculator that martin popped up with a while ago.....


How far out percentage wise can you go with a 4x4 front to rear??

I'd like to keep a 40 profile ideally (or equivalent sidewall)

dave cos4x4

iTrader: (5)

think its better to ask Martin Kev.

Billabong

You really want the same all round on 4x4 Cossie.

Hub-centric spacer should be fine - Martin can sort them.

NEIL A

iTrader: (6)

Im running 245/40/18 on my 9x18 but when its time to change will be going down to a 235/35/18.

Martin-Hadland

iTrader: (2)

You can't really use different f/r height tyres without scrapping the centre VC.

dave cos4x4

iTrader: (5)

but is that what Kev was asking.....

what size tyres to use so that he can use different size wheels f/r, width wise.

Kelv

iTrader: (4)

after recomendation from Martin i went for 245/35/18's

Martin-Hadland

iTrader: (2)

Try this then... http://www.toyo.co.uk/tyre_converter_2.php?series=40

edited to say don't both it doesn't help much

dave cos4x4

iTrader: (5)

thats ok Kelv if you are using the same size wheels.

read what else Kev has asked.

kjc300

iTrader: (1)

All the wheels are 9" wide, but for example......


a 225/40-18 does 829.3 revs per mile

a 255/35-18 does 831.3 revs per mile

they are within 0.24% of each other.


I'm not suggesting I use these size tyres - just an e.g.


The calculator doesn't take into account the rim width the tyre is fitted on though, just advises on the width the tyre CAN go on.


Basically I was wondering if there was any advantage with going wider on the back? Obviously you don't want to go too wide on the front with the spring cup clearance.

Martin-Hadland

iTrader: (2)

255/35x18 are the same height as your 225's > 636mm

NEIL A

iTrader: (6)

Way i read it was that Kev has now got a set of 9x18's and wants to fit the two 225/40/18's that he already has lying onto two of them then fit wider rubber to the back two wheels. Dont think the 225's would work on 9x18's as they are a bit narrow.
Dont think he means running 2 super t's and 2 RL7's.

dave cos4x4

iTrader: (5)

martin-reyland

but not if on an inch wider rim.

Martin-Hadland

iTrader: (2)

I would not use a 225 on a 9" anyway!! Just run the same all round like Kelv

Kelv

iTrader: (4)

Kev, bin the 2 tyres you have, or keep them for spares for the Super T's.

just buy 4 brand new tyres all of the same size.

dave cos4x4

iTrader: (5)

or make it 2wd.

kjc300

iTrader: (1)

They were for the super T's anyway as the fronts are worn.

Was just checkin things out - same size all round it is then!!


What about the spacers martin?? There's 5mm difference in the offset. I have 2 et25's and 2 et20's. The 20's are fine, but the 25's only just bind up on the caliper / wheel spokes

I reckon 2 or 3mm may be enough. Or dare I say it - shave a bit off the
calipers!! (got any red paint??)

I have the 330 4 pot AP's on the back

I'm not too keen on the spacer idea myself

Kelv

iTrader: (4)

4 pots on the back - show off!!

PM me a pic Kev, i want some of that

kjc300

iTrader: (1)

SuperTed?????

Sticky.

iTrader: (4)

More to the point....what colour are you doing them

There mint the wheels you've bought Kev

Kelv

iTrader: (4)

i said it as a joke, didnt expect it to change - oh well - may aswell change my sig aswell then

kjc300

iTrader: (1)

White..........................

































I think!!!