I just bought another 300zx whilst my other one gets finished of, My question is at resonable high speed the car seems to grab the road to much and acts a little scetty. ithought when ive looked at these tyres sives i have found the problem. can you confirm? do these tyre sizes sound compleatly wrong?

225.40.18 at rear and 225.40.18.at the frount.

On my other 300 the set was

245.40.18 frount and 265.35.18 at rear and that seems to hold the road and be tones more settled.

Am i right in saying that the front tyres should be slightly smaller and a higher profile than the back like my other one?

225 at the rear is way too narrow for my likening - so I would say yes as you've lost loads of traction using them.

 

my ride is currently 255 rears and 225 fronts on 19's and I still I wish wider when I change my tyres shortly.

 

 

I just bought another 300zx whilst my other one gets finished of, My question is at resonable high speed the car seems to grab the road to much and acts a little scetty. ithought when ive looked at these tyres sives i have found the problem. can you confirm? do these tyre sizes sound compleatly wrong?

225.40.18 at rear and 225.40.18.at the frount.

On my other 300 the set was

245.40.18 frount and 265.35.18 at rear and that seems to hold the road and be tones more settled.

Am i right in saying that the front tyres should be slightly smaller and a higher profile than the back like my other one?

225 is the stock jspec width all round, uks have wider 245 rears. it would be well worth checking all the alignment before you get carried away, mine was way off orginally. Put the stock wheels on and realigned it all and what a difference.

The width and rolling radius is wrong on the rear, i would at least have 245 or 255/35 on the rear

think i've got 285/35/19 on the rear of mine.. and i still wish they were bigger :D

this may help a little... you can compare...

 

(Well at least to answer how the size, profile and with affect the diameter)

 

http://www.etyres.co.uk/tyre-size-calculator.htm

think i've got 285/35/19 on the rear of mine.. and i still wish they were bigger :D

 

35? ive got 285/30/19's on the rear, grip like hell. might be tyre choice?

i know voddy, probably only got 3-4mm on these left. not looking forward to the bill replacing them!

i know voddy, probably only got 3-4mm on these left. not looking forward to the bill replacing them!

 

yeah have fun with that one, though good thing is, fronts dont need replacing as much as rears, but my recommendation when you come to getting new rubber, falken 452's

You can get 452s in the bigger widths for good money now.

225 is the stock jspec width all round, uks have wider 245 rears. it would be well worth checking all the alignment before you get carried away, mine was way off orginally. Put the stock wheels on and realigned it all and what a difference.

 

They might be stock on the jspec and this is a jspec car but surly only 225 on jspec and if they keept yhe 16" wheels but someone has put 225 at the front and back and on an 18" alloy. Thats got to be wrong?

The width number, is irrelivent to wheel diameter. Its the profile that flucuates as its a % not a measurement.

I have 265/35/18 on the rear of mine

They might be stock on the jspec and this is a jspec car but surly only 225 on jspec and if they keept yhe 16" wheels but someone has put 225 at the front and back and on an 18" alloy. Thats got to be wrong?

 

225 on an 18" rim...must look like cart wheels:confused1:

Yeah I have the same gaz front 225/35/18 rear 265/35/18 previously 225/50/16 no change in front end grip.

Im just trying to establish weather if someone puts the same size tyres on the front as the rears then thell be issues?

no there wont, the car and most cars are sold with equally sized wheels all round. infact staggered setups are more prone to issues than those which are equal

In that case then before i bung out on some tyres ill get her on a ramp and check out the bushes ect. It just dont seem to hold the road as mine does. I can take take my hands off the wheel at 90 if i wished and wondnt worry so much basically i was wondering if it was a tyre issue befor i spent money that i dont want to.

a lot of tyre places will do free alignment checks, then charge a small amount for adjustments. :) have a shop around.

Yeah I have the same gaz front 225/35/18 rear 265/35/18 previously 225/50/16 no change in front end grip.

i have 235 40 on the front :)

i have 235 40 on the front :)

Yes but i bet you dont have that same size on the rear

No he has 265/40/18 on the rear. lol possibly 35 cant remember. My last car had equal sized tyrs all round my mrs car has equal sized all round lol. I bet your daily driver does aswel.

ime just about to put the same tires on all 4 corners on mine...cant see any issues at all:cool3: