Neo

iTrader: (3)

As far as I can tell, OEM wheel offset is +45. The +35 will be 100 more towards the fender. The +35 offset should fit up front on the SC430. 18x8 +35 fits on the 2GS and I know the SC430 car take a bit more.

With the tires, I would stay the same size all around. Unless you are going with a staggered setup, trying to squeeze out a bit more on the rear is not worth it. As ELP_JC stated, I would not put more than the 245 on a 18x8 rim.

As for the shop's statement on the Opera 2, maybe he meant the bolt pattern

One last thing. Your eyes are not playing tricks on you with 20s. Most people who has 20s on their Lexus do have wheels that are about 1" LARGER than spec. This is due to a few reasons:

- Tire availability. Although some more sizes are becoming available, the 245/35 and 275/35 has more choices.

- Ride comfort. To be at OEM spec, you'd have to run 30 and 25 series tires. If you imagine the same wheel diameter as OEM and you increase the rim diameter, you get less and less tire sidewall. Less sidewall = less rubber (and stiffer) = less comfort.

camillian

Thanks for all the info Neo.

And yes the opera 2 is 5 x 112 where as the lexus is 5 x 114 if I am not mistaken .

camillian

where is the offset measurement taken from? I mean is + 45 the distance in milimetres from the fender to the wheel, the fender being 0? So an 8" depth wheel at +45 would be the same distance as a 10 " with +45 from the fender, the extra depth would be on the inside?

Thanks,
Mario

hageuzai

+45 would mean that the surface of the wheel which is mounted to the car
is located 45mm torwards the outside measuring from the center of the hoop.
In other words, a +0 offset means that the wheel gets attached to the car
at the very center of the rim.

If you were to compare an 8" and 10" wheel, then an 8" +45 and 10" +70 would
be sitting at the same distance from the fender (although I have never heard of
such size as +70) and the extra depth goes on the inside.

Neo

iTrader: (3)

Maybe this pic will help:

rominl

iTrader: (4)

for chrome, i just want to say that i would avoid it as much as i can. basically chrome makes metal weaker, that's a fact, so it's just always be weaker, meaning you bend it easier. and of course, with all the salt and stuff in the winter, that's more hazard too

rominl

iTrader: (4)

mario, those are still not good enough imho. if you draw some diagrams and compare, i can tell you, 9 + 24 will fit on the car no problem, and that's almost as close to the outside as possible (for the front at least). and the 8 +35, that's 13mm more inboard!!!! you see the "problem" there?

and yes, unless you can find something more aggressive than the stock in terms of size and offset, continue shopping

rominl

iTrader: (4)

neo already has the diagram up so i think that helps a lot already

to everyone, i am sorry i havent' gotten the guide up. in teh wheels/tires forum i already put all all information for the GS and the IS. now i have already studied enough on the SC430, i will find time and do the guide for the sc430 asap. hopefully after that you guys will have a much better reference