IS - 2nd Gen (2006-2013) Discussion about the 2006+ model IS models

Tire Fitment Question?

Thread Tools
 
Search this Thread
 
Old 08-28-06, 08:54 PM
  #1  
fleadog99
Lexus Test Driver
Thread Starter
iTrader: (2)
 
fleadog99's Avatar
 
Join Date: Jan 2003
Location: TX
Posts: 1,135
Likes: 0
Received 1 Like on 1 Post
Default Tire Fitment Question?

I looked through the aftermarket setup thread, did not notice anyone with this set up......

I have 20x8.5 +20 offset FRONT

20x10 +40 offset REAR:

Tires that are on there: 245/35R20 and 275/30R20 Respectively.


Question? ---------

I know that the front tires do not fit, already hade them installed, rubs everywhere. Need to know if a 225/35R20 would fit in the front? This is the only other size I have to choose from to match the back tires.

Tires are Kumho SPT
Old 08-28-06, 09:05 PM
  #2  
al503
Lexus Champion
 
al503's Avatar
 
Join Date: Jun 2003
Location: Oregon
Posts: 1,680
Received 7 Likes on 5 Posts
Default

I think you're going to rub on the outside fender regardless of tire size whenever you go over a bump or compress the suspension.
Old 08-28-06, 09:14 PM
  #3  
fleadog99
Lexus Test Driver
Thread Starter
iTrader: (2)
 
fleadog99's Avatar
 
Join Date: Jan 2003
Location: TX
Posts: 1,135
Likes: 0
Received 1 Like on 1 Post
Default

Why? because of the offset or wheel size.
Old 08-28-06, 09:23 PM
  #4  
al503
Lexus Champion
 
al503's Avatar
 
Join Date: Jun 2003
Location: Oregon
Posts: 1,680
Received 7 Likes on 5 Posts
Default

I'm sorry for not explaining. It's the offset. If you could find 225 or 235/30, you might be able to make it work with 20's if your offset was ~+35 or higher. At +20, the wheel sticks out too far past the fender so even if you're stretching the tires on the wheel, the tread will make contact with the fender whenever the suspension compresses enough.
Old 08-28-06, 09:26 PM
  #5  
fleadog99
Lexus Test Driver
Thread Starter
iTrader: (2)
 
fleadog99's Avatar
 
Join Date: Jan 2003
Location: TX
Posts: 1,135
Likes: 0
Received 1 Like on 1 Post
Default

I guess I am kinda stuck with the wheels, I already bought them and mounted them. Is there any ideas of what I can do.
Old 08-28-06, 10:04 PM
  #6  
al503
Lexus Champion
 
al503's Avatar
 
Join Date: Jun 2003
Location: Oregon
Posts: 1,680
Received 7 Likes on 5 Posts
Default

Not really. I think the only thing you can do is sell them and try again.
Old 08-28-06, 10:59 PM
  #7  
9520G
Lead Lap
 
9520G's Avatar
 
Join Date: Jul 2006
Location: NJ
Posts: 650
Likes: 0
Received 0 Likes on 0 Posts
Default

Do you have any pictures? I would like to see what it looks like!
Old 08-29-06, 01:59 AM
  #8  
t0e
Lexus Champion
iTrader: (1)
 
t0e's Avatar
 
Join Date: Jan 2006
Location: Cali4nication-LosAngeles
Posts: 3,494
Received 6 Likes on 2 Posts
Default

Post some pictures of that 20+ offset...
Old 08-29-06, 06:00 AM
  #9  
fleadog99
Lexus Test Driver
Thread Starter
iTrader: (2)
 
fleadog99's Avatar
 
Join Date: Jan 2003
Location: TX
Posts: 1,135
Likes: 0
Received 1 Like on 1 Post
Default PIcs

here are the pics of the +20 offset.

PIC - 1
PIC - 2
PIC - 3
PIC - 4
PIC - 5
PIC - 6
PIC - 7
PIC - 8
Old 08-29-06, 07:32 AM
  #10  
4TehNguyen
Lexus Fanatic
iTrader: (1)
 
4TehNguyen's Avatar
 
Join Date: Jan 2006
Location: Houston, Texas
Posts: 26,033
Received 51 Likes on 46 Posts
Default

pic 3 and 4 show why the 20 offset is too low, sticks out too much, and you will probably rub. Most people select mid 30s as their front offset for the best fit
Old 08-29-06, 07:45 AM
  #11  
Gernby
Lexus Champion
iTrader: (1)
 
Gernby's Avatar
 
Join Date: Jul 2006
Location: CA
Posts: 3,844
Likes: 0
Received 2 Likes on 2 Posts
Default

Did you buy these retail?! Whoever told you that those offsets would work was crazy. If you go over a bump with those front wheels, it won't just rub, it'll buckle your fenders.
Old 08-29-06, 10:04 AM
  #12  
fleadog99
Lexus Test Driver
Thread Starter
iTrader: (2)
 
fleadog99's Avatar
 
Join Date: Jan 2003
Location: TX
Posts: 1,135
Likes: 0
Received 1 Like on 1 Post
Default

What exact fitment and tires do I need then, I am going to buy a new set, and try to sell these or return them for a small fee.
Old 08-29-06, 10:09 AM
  #13  
Gernby
Lexus Champion
iTrader: (1)
 
Gernby's Avatar
 
Join Date: Jul 2006
Location: CA
Posts: 3,844
Likes: 0
Received 2 Likes on 2 Posts
Default

Take a look here to see what others have gotten away with.
Old 08-29-06, 10:18 AM
  #14  
al503
Lexus Champion
 
al503's Avatar
 
Join Date: Jun 2003
Location: Oregon
Posts: 1,680
Received 7 Likes on 5 Posts
Default

Originally Posted by fleadog99
What exact fitment and tires do I need then, I am going to buy a new set, and try to sell these or return them for a small fee.
with 8.5" up front, I'd go with something between +36 to +40 on the offset.
for 9.5"s in the rear, I would go between +38 to +45.

Are those wheels available in 19"s? I don't know if this is a consideration for you or not but going with 20"s leaves you with rubber bands for tires. If you live somewhere like Fla where they have great roads with no potholes, you might be OK. However, running 20"s with something close to OEM size tires doesn't give you much sidewall protection at all.

Just a thought.

With the 20"s, I'd go 235/30/20 and probably 265/30/20. I believe this is slightly larger than stock in terms of overall diameter. You might bump it up to 245/30 and 275/30 to get a little more sidewall though. However, the bigger you go, the more potential issues you'll have with rubbing.
Old 08-29-06, 10:47 AM
  #15  
fleadog99
Lexus Test Driver
Thread Starter
iTrader: (2)
 
fleadog99's Avatar
 
Join Date: Jan 2003
Location: TX
Posts: 1,135
Likes: 0
Received 1 Like on 1 Post
Default

If I go with:
20X8.5FRONT
20X10 REAR
235/30/20F
275/30/20R
+40 offset all around


Quick Reply: Tire Fitment Question?



All times are GMT -7. The time now is 01:50 AM.