Hey all,
Just put some second hand rims on my wifes ride (98 magna)
and was not sure if the widths of the tires were too much, and if the over-all size was bad.

17 inch rims
Front : 245x40c17
Rear: 235X40X17

is 245 a bit meaty?? and is 40depth too big or small?? hmm

Hey all,
Just put some second hand rims on my wifes ride (98 magna)
and was not sure if the widths of the tires were too much, and if the over-all size was bad.

17 inch rims
Front : 245x40c17
Rear: 235X40X17

is 245 a bit meaty?? and is 40depth too big or small?? hmm


What is the wheel size? If the wheels are between 17x8 and 17x9.5 the tyres are the appropriate width.

ummm. how do i find out, i just bought them from a friend, they were sitting in his yard for a little while.. pumped them up and put them on, they fit.. and looked pretty good :D
but then i was thinking, whats good whats not as far magnas go

Just make sure the tyre isn't wider then the rim. You will be able to tell if it bulges out at all at the sides.

Oh ok, good tip there Hayden :D
They seem to fit, will look into it more in the next few days
Thanks for your help :D

Rim size and offset should be stamped on the inside of the spokes. Just jack one wheel up and use a mirror and light to see.

mechanic i got the car serviced at thinks the cars light steering, and chasing in pot holes is due to the 245's on the front.
my wife said that when she goes over bumps the cars steering is effected by it, more than other cars she has driven. is this normal??????

Tramlining is the norm for very wide tyres.

mechanic i got the car serviced at thinks the cars light steering, and chasing in pot holes is due to the 245's on the front.
my wife said that when she goes over bumps the cars steering is effected by it, more than other cars she has driven. is this normal??????

Yes 245 tyres will do this the more they are worn too. If you want to stop it you will need to swap to a 225 or 235 tyre.. Even a 235 will still do this a bit though.

Yes. I went from 225/45R18 to 235/45R18 and noticed the increased tramlining.

Thanks heaps for the info.
Currently have the 245s on the front and 235s on the rear, thinking wider tyres on the drive tires would be best.
So tomorrow, I will switch them and see if it gets any better.
gladly the 235s are partly worn, so if it does not improve, I might look at 225's

What size would everyone suggest is best?? I want great grip in the wet & good traction, but dont want the "tramlining"

You have a tf 225 or 235 is best depending on cost. With any decent rubber you won't have to much problem with grip. Remember good rubber is more important then the size of rubber.

yeah tru Hayden, Good rubber is the key :D

Depends on the width of the rim. I'd go 225s on a 7 or 7.5" rim, and 235s on a 7.5" or 8" rim. 235/45/17s is also a very cheap/common size.

Depends on the width of the rim. I'd go 225s on a 7 or 7.5" rim, and 235s on a 7.5" or 8" rim. 235/45/17s is also a very cheap/common size.
Took the mags off, and rotated them so that the 235's are on the front and had a look at the wheels

WHEEL DETAILS:
KOSEI JAPAN
OFFSET 35
17X8JJ

Yup, I'd definitely go a set of 235/45/17s.

Yup, I'd definitely go a set of 235/45/17s.

Second this. This is a very common tyre size and is perfect for your wheels.

I looked at the rear end today, and noticed that there is not much room between the tyre/tire and the stabilizing bar (i dont know the name of this part)
and that is with 40's on it, & im worried that the 45's will scrape

what will happen if i lower it

I looked at the rear end today, and noticed that there is not much room between the tyre/tire and the stabilizing bar (i dont know the name of this part)
and that is with 40's on it, & im worried that the 45's will scrape

what will happen if i lower it

There should be plenty of room with 35 offset wheels. Are you talking about the verticle arm that goes over the inside upper shoulder of the tyre?

I've got 235/45r18 on 18x8 35 offset and no rubbing with the thicker control arms.

yeah i think thats what im talking about.
its just concerning that its already close is all.

yeah i think thats what im talking about.
its just concerning that its already close is all.
Yes a pinkies thickness.
Edit. The gap remains constant as in it does not change when adding extra weight to the rear.

Looking at getting 215/50 R17's on as the 235/40 R17's are way too small in depth & look kinda weird, but i love the width!

http://www.aussiemagna.com/forums/showthread.php?t=96888&p=1522134&highlight=#post1522134
(pics in this link)

Looking at getting 215/50 R17's on as the 235/40 R17's are way too small in depth & look kinda weird, but i love the width!

http://www.aussiemagna.com/forums/showthread.php?t=96888&p=1522134&highlight=#post1522134
(pics in this link)

You need 235/45R17 which is only slightly smaller in OD compared with 205/65R15. 225/50R17 is also OK which is bigger.

was looking online and found this website :D
http://www.carbonblack.com.au/car-tyres/tyre-sizes/sizing-your-tyres.aspx

it shows 0.1% diff between the 215/50 R17's and the 205/65R15's that are stock.

I don't think 215's are ideal for an 8" rim..

Oh yeah ammerty, i guess you could be on the money there, would look kinda drift wannabe to have skinny tires on fairly wide rims lol

235/45R17 would be your best bet, and cheapest by far

Ammerty I have 235/40R17 now, and the car tramlines like a B!t&h

I have switched to 215/50/17X8 and my car tramlines worse than ever. I really don't know why as this has always been a symptom of excessively wide tyres for me.
Considering 215 is the standard width of magna tyres, is there any thoughts out there as to why 215's would tramline? It is a narrow tyre for the 8 inch rim no doubt, but I didn't think that would cause it? If I somehow have tow out would that account for it?

Sorry to highjack your thread chucky, I just didn't want to make a new one when we're already on the subject ;)

Na is all good Magmad, needing to sort out this issue.

some people suggest poor wheel alignment could be one reason for the tramlining
some others say tire width and depth
and then others suggest that front shockies and/or rubbers

*I have no idea, but hope to god slimmed deeper tires solve the problem*

on reseaching this more, wiki suggests wheel aligning, and tirerack.com suggests perhaps wheels offset may be wrong for the car itself.

magmad, did you have a wheel alignment done after you got your new tires?

Na is all good Magmad, needing to sort out this issue.

some people suggest poor wheel alignment could be one reason for the tramlining
some others say tire width and depth
and then others suggest that front shockies and/or rubbers

*I have no idea, but hope to god slimmed deeper tires solve the problem*
Go see murph at beaurepaires edwardstown. He will sort you out.

on reseaching this more, wiki suggests wheel aligning, and tirerack.com suggests perhaps wheels offset may be wrong for the car itself.

magmad, did you have a wheel alignment done after you got your new tires?

No I didn't, that's next on the list actually. My mechanic couldn't understand how new wheels/tyres would alter alignment and I have to agree with him. I know a lot of tyre fitters suggest it, but is that just an add on sale or is there any science behind it? I mean after all they're not aligning the wheels really, they're aligning the hubs as the two are fixed, so it really shouldn't change.
I know if you change height dramatically (either rim/tyre height or spring height) it can throw your camber out but I still don't know how that changes toe - I just know from experience it does seem to.

If toe is incorrect then wider lower profile tyres and lower offset will exaggerate tramlines. Both if you just go and visit murph.

If toe is incorrect then wider lower profile tyres will exaggerate tramlines. Both if you just go and visit murph.

I visited murph today. My alignment was out by a bit. Rears had lots of tow and it was veering left.

He said he did yours not long back vlad and i think mines got similar settings to yours now. Really love it.

Another plus one for murph

This murph guy is sounding like some sort of alignment god! Wish I lived a bit closer to Edwardstown.
Got an alignment already booked in the hills for tomorrow... just front wheels though :/ I'm guessing a 4 wheel alignment is ideal if the things tramlining like mad mouse in fast forward?

oh, murph sounds like he knows his stuff, but i think i will go a little more local, as i am not far from wingfield, which is kinda an industrial area, pretty sure there would be someone decent to get it done here.
how much did you guys pay murph? and how much should i expect to pay, for 4 wheel alignment

oh, murph sounds like he knows his stuff, but i think i will go a little more local, as i am not far from wingfield, which is kinda an industrial area, pretty sure there would be someone decent to get it done here.
how much did you guys pay murph? and how much should i expect to pay, for 4 wheel alignment

Pm sent

So guys where is Murph's workshop??? addy, business name, phone number etc etc...
might look into it next weekend, gotta get the tires changed 1st then i can look at alignment after.

So guys where is Murph's workshop??? addy, business name, phone number etc etc...
might look into it next weekend, gotta get the tires changed 1st then i can look at alignment after.

As I posted before,beaurepaires edwardstown. Go to beaurepaires website and do a store search. Only one beaus a edwardstown on south rd not far after cross rd bridge.