Offset Question - Club Lexus Forums

Log In 

Offset Question

Reply
 
 
 
Thread Tools Search this Thread
Old 06-06-16, 01:18 PM   #1
geero
Driver
Thread Starter
iTrader: (1)
 
geero's Avatar
 
Join Date: Oct 2011
Location: CA
Posts: 153
Default Offset Question

I'm probably gonna get flamed for this but I just picked up an 08 SPF IS-F and had a question about wheel fitment clearance with its brake system. I know the gist of offsets and was trying to research the answer but does anyone know if there is a magic number (i.e. +35) that would guarantee minimal clearance? thanks in advance
geero is offline   Reply With Quote
Old 06-06-16, 01:36 PM   #2
Vervish
Lexus Test Driver
iTrader: (4)
 
Vervish's Avatar
 
Join Date: Apr 2012
Location: NJ
Posts: 827
Default

The wheel gurus will chip in - but I think the minimum offset is going to vary depending on the wheel and width.

The stock offset for 08-11 is +45 front and +55 rear. For 2012+ it is +51 rear..

For example, the 19"X 9" F sport wheels are +40 offset, but do not clear the rear brakes without a 5mm spacer.
Vervish is offline   Reply With Quote
Old 06-06-16, 09:41 PM   #3
tas02
Lead Lap
iTrader: (1)
 
Join Date: Jul 2015
Location: WA
Posts: 675
Default

As Vervish said. Certain wheel designs offer more clearance.

For example, an 18 x 9.5 +45 Enkei Rpf1 will not clear the Isf front brake (without a spacer), while the Pf01 of the same size will fit fine.

The sure bet is to test fit the rim before purchasing. What setup are you considering?

There's a "wheel fitment" thread somewhere.
tas02 is offline   Reply With Quote
Old 06-07-16, 12:22 AM   #4
bnizzle87
Lexus Fanatic
 
bnizzle87's Avatar
 
Join Date: Jul 2009
Location: CA
Posts: 5,315
Default

There's not a real finite answer to the OP's question. What I can suggest would be research the exact wheel design that one wants. Obviously, test fitting would be ideal, but if one is buying new and potentially the wheels need to be custom built or shipped from say, Japan, test fitting won't be an option. I've had friends who purchased wheels specifically for their F, only to find out when they're first mounting it that it doesn't clear the calipers or require additional work (fenders, suspension, tire choice, ride height/wheel gap, etc.). And that's where the real trouble comes into play because it's one thing to have wheels that don't fit; it's another to try and unload them for the value you paid for.

To the OP- do you have a wheel design/manufacturer/model in mind? It would really help to narrow down choices and see what your options are in searching for new wheels.

Best of luck!
bnizzle87 is offline   Reply With Quote
Old 06-07-16, 03:04 AM   #5
JMGISF
Driver School Candidate
 
Join Date: Jun 2016
Location: TX
Posts: 2
Default

I have a similar question, but really am looking for recommendations from other members. I would like to get an 18" wheel for track days that is not going to cost me 500 / wheel. I'm getting an extra set because I'm worried about messing up my BBS wheels at the track and am tired of burning through my continentals after just two weekends. Net, open to ideas on a good 18x9 I can put on all four corners. Thanks!
JMGISF is offline   Reply With Quote
Old 06-07-16, 05:06 AM   #6
mikersoft
Lead Lap
 
mikersoft's Avatar
 
Join Date: Dec 2013
Location: VA
Posts: 710
Default

Quote:
Originally Posted by JMGISF View Post
I have a similar question, but really am looking for recommendations from other members. I would like to get an 18" wheel for track days that is not going to cost me 500 / wheel. I'm getting an extra set because I'm worried about messing up my BBS wheels at the track and am tired of burning through my continentals after just two weekends. Net, open to ideas on a good 18x9 I can put on all four corners. Thanks!
The Enkei PF01 seems to be good fit for a reasonably priced, lightweight, 18" wheel.. It's one that I'm considering.

-Mike

http://www.clublexus.com/forums/is-f...-pictures.html
mikersoft is offline   Reply With Quote
Old 06-07-16, 06:03 AM   #7
geero
Driver
Thread Starter
iTrader: (1)
 
geero's Avatar
 
Join Date: Oct 2011
Location: CA
Posts: 153
Default

i really like the stock look of the '12 and '13 BBS rims so i was looking at getting BBS CH R's for my SFP. had a feeling that each make/model of rims had some differences when i comes to offset fitment.



Offset Question-image-3756655370.jpg
geero is offline   Reply With Quote
Old 06-07-16, 06:56 AM   #8
STANC36
Rookie
 
Join Date: Mar 2013
Location: Bavaria
Posts: 74
Default

Quote:
Originally Posted by geero View Post
i really like the stock look of the '12 and '13 BBS rims so i was looking at getting BBS CH R's for my SFP. had a feeling that each make/model of rims had some differences when i comes to offset fitment.



Attachment 389160
I had my eyes on those as well, but don't they come in weak sizes and offsets for 5x114.3?
According to their German site there's only
19x8 +38 and 20x8,5 +38 available.
Maybe you get different sizes in the US.

Edit: in that case of design the lower the offset the better the brake clearance.
2 or 3 piece wheels are a whole different story

Last edited by STANC36; 06-07-16 at 10:56 AM.
STANC36 is offline   Reply With Quote
Old 06-07-16, 12:19 PM   #9
geero
Driver
Thread Starter
iTrader: (1)
 
geero's Avatar
 
Join Date: Oct 2011
Location: CA
Posts: 153
Default

Quote:
Originally Posted by STANC36 View Post
I had my eyes on those as well, but don't they come in weak sizes and offsets for 5x114.3?
According to their German site there's only
19x8 +38 and 20x8,5 +38 available.
Maybe you get different sizes in the US.

Edit: in that case of design the lower the offset the better the brake clearance.
2 or 3 piece wheels are a whole different story
really?? bummer
geero is offline   Reply With Quote
Old 06-07-16, 12:34 PM   #10
STANC36
Rookie
 
Join Date: Mar 2013
Location: Bavaria
Posts: 74
Default

Quote:
Originally Posted by geero View Post
really?? bummer

Absolutely, I'm not sure, but as long as I know the CH-R is a wheel designed and manufactured in Germany.
We got strict laws specially when it comes to wheels, brakes and suspension.
So they need to get every size and offset tüv approved to sell it road legal.
Our domestic brands don't use 5x114,3 and it's not really common here. Only jap or us imports use them over here. So they don't put much effort in this pcd and that's also the reason that there are the most options at 5x112 because VAG and Mercedes uses this plattern.
You could use "adapter washers" to make 5x112 fit on 5x114,3 wich shouldn't be an option on a 400+ hp car or adapter spacers (recommends very high offsets around 60mm)
STANC36 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
high disk low disk question lkapimp216 The Tire Rack's Tires, Wheels & Brakes Forum 2 05-15-11 03:41 PM
BBK clearance questions??? handoverfi Suspension and Brakes 5 06-05-08 05:47 PM
Help me to install LS400 calipers JesLet Suspension and Brakes 10 01-07-08 09:08 PM
sc400 clearance question Willha418 The Tire Rack's Tires, Wheels & Brakes Forum 2 02-10-06 10:30 AM
Question on IForged Brake Clearance newyorksc The Tire Rack's Tires, Wheels & Brakes Forum 3 06-17-05 06:35 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump


All times are GMT -7. The time now is 10:18 AM.


Copyright © 2000-2016 Internet Brands, Inc. All Rights Reserved