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***List of Wheel Sizes, Offsets, and Tire Sizes for RSX.

1356349 Views 1558 Replies 604 Participants Last post by  mfarmakas17
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PLEASE DO NOT PM ME ASKING WHAT WILL FIT. I ONLY KNOW THE INFO ON WHAT IS POSTED BELOW.

RSX Wheel Offsets and Tire Sizes.

All sizes and offsets listed below are known to work and have been used by a member here. Another tire size or offset may work than those listed, if you have used or are using an offset and tire size that is not listed below, post a reply to the thread and I will try to add it. Please be sure you know the offset works before posting and pictures always help too.

Shown below is a list of wheel sizes, offsets, and tire sizes known to work with them. All of the information below is based on RSXs without widebody kits and unrolled fenders. This way everyone will have an idea of what works on a stock body, lowered RSX. Also, these sizes are without the use of wheel spacers.

I hope this helps everyone...

Updated 04/07/07


-Stock Offset and Sizes-
'02-'04: 16x6.5" with +45mm offset.
'05-'06: 17x7" with +45mm offset.

-Bolt Pattern and Lug Nut Size-

These also apply to aftermarket wheels:
Bolt pattern: 5X114.3 (means 5 lugs spaced 114.3mm apart)
Lug nut size: 12mm X 1.5" (12mm thread size by 1.5 inches long)

-OEM or Stock Body and Fenders ]-(no alterations to the body of the car to make them fit)

16X7: +40. Tire sizes: 205/55-16 to 225-50-16.
16X7.5: +43. Tire Sizes: 225/50-16.
16X8:
16X8.5:
16X9:
17X7: +35 to +60 Tire sizes: 205/45-17 to 225-45-17. (ideal offset is +42 or +43)
17X7.5: +40 to +48 (+35 w/ no drop). Tire sizes: 205/45-17 to 225/45-17. (ideal offset is +42 or +43)
17X8: +35 to +48. Tire sizes: 215/45-17 to 245/45-17. (245/40-17 was used with +40)
17X8.5: +30 offset with 215/45-17 Tire. +40 with a 235/45-17 Tire.
17X9:
18X7: +37 to +45. Tire Sizes: 205/40-18 to 225/40-18. (ideal offset is +42 or +43)
18X7.5: +38 to +48. Tire sizes: 205/40-18 to 225/40-18. (ideal offset is +42 or +43)
18X8: +37 to +48. Tire Sizes: 225/40-18.
18X8.5: +45. Tire sizes: 235/40-18.
18X9: +40. Tire size: 245/40-18 ALSO>> 18x9 +29 offset, 215/45/18 tire
19X7: +40 to +45. Tire sizes: 215/35-19 to 225/35-19.
19X7.5: +43 to +48. Tire Sizes: 215/35-19 to 225/35-19.
19X8: +35 to +47. Tire sizes: 215/35-19 to 235/35-19.
19X8.5:
19X9:
20X7:
20X7.5: +42. Tire Sizes: 225/30-20. NOT LOWERED! Only on '05 and up???
20X8:
20X8.5: +42. Tire Sizes: 225/30-20. NOT LOWERED! Only on '05 and up???
20X9:


-Offsets, Hub-Centric Rings, and Counterbores-





Basically offset is the distance from the centre of the wheel to the part of the wheel that sits against the hub of the car (mounting pad), more commonly measured in millimetres (mm).

As you can see in the diagram above, a positive offset is when the mounting pad of the wheel is toward the outer edges of the car and a negative offset is when the mounting pad is towards the centre of the car more. An offset of zero is the absolute centre of the wheel and would have an equal distance to each side of the mounting pad. For the RSX all of the offsets should be positive (+) I don't see where you would want or need to use a negative offset at all. The offset will change on wheel width too, you won't have the same offset on a 9" and a 7" wide wheel and have them fit the same on the same car.

When you buy aftermarket wheels the centre bore of the new wheel will be much larger than that of the stock wheel, this is because of the wide range of hub sizes on different cars and not all cars are made the same. So what the wheel manufacturer will do is make the hub size the largest so it will fit over any hub and then a hub-centric ring must be used to make up the difference between the RSX's stock hub size and the aftermarket rim center bore size. These are usually made of plastic or aluminium and should come with your new wheels to prevent any vibration that may occur. Without them, your wheel will not be truly centred on the hub and at certain speeds, your steering wheel may shutter and/or vibrate, just like an unbalanced tire - not a good feeling.
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This what fits and what hits could be broken down into 2 simple measurements. "Backset" distance from the rim mounting surface to the back edge of the wheel including tire bulge. The other measurement woud be from the rim mounding surface outward to the front edge of the rim including the tire bulge.
Tell me what back set just rubs a bit and what outward measurement just slightly rubs and I would be able to stuff one impressive tire under that rsx. I am sure some yrs have different measurements so that must be considered.
Camber must be at a stock setting or noted with measurement
All that is needed to do this calculation is a straight edge and a tape measure.
If some one could supply these 2 measurements to us we all could do the figuring on our own.
Going to stuff a 245/40/17 on an 8" rim under my RSX once I can get those measurements
Thanks in advance,

Bronco Rider
Bronco Rider said:
This what fits and what hits could be broken down into 2 simple measurements. "Backset" distance from the rim mounting surface to the back edge of the wheel including tire bulge. The other measurement woud be from the rim mounding surface outward to the front edge of the rim including the tire bulge.
Tell me what back set just rubs a bit and what outward measurement just slightly rubs and I would be able to stuff one impressive tire under that rsx. I am sure some yrs have different measurements so that must be considered.
Camber must be at a stock setting or noted with measurement
All that is needed to do this calculation is a straight edge and a tape measure.
If some one could supply these 2 measurements to us we all could do the figuring on our own.
Going to stuff a 245/40/17 on an 8" rim under my RSX once I can get those measurements
Thanks in advance,

Bronco Rider
But this calculation "including tire bulge" would have a different measurement every time unless everyones tire size and brand were the same. The tire bulge would be different on a 7" wide rim than it would be on a 8" wide rim of the same size tire. And different manufacturers somehow have different tread widths for the same size tire. For instance, my old Toyo T1-S 225/40-18 measures 9.0" wide on an 8" rim, a BFGoodrich G-Force T/A KD of the same size and mounted on the same width rm comes in at 9.1". One of Bridgestones tires measures 9.2", so its not the easiest thing to go by.

I understand what you are saying though and it still could be done, but there are a lot of variables that have to be considered. If you wanted to you could take your wheel off and set the car down on a jack stand so the suspension would have a "load" on it, and then maybe get a measurement that way.
Nice list, but your avatar scared me with her ugly-ness.
You are right, tire bulge is a variable but not too difficult to figure. Pull the tire size and specification from Discount or Tire Rack table. Section width is given along with the rim width used for the measurement. If the rim is wider or narrower, adjust accordingly

Bronco Rider
nice thread with some good info
+ reps
now, if more ppl could give their info, like those with large body kits and stuff, it would be awesome
wraith501 said:
Nice list, but your avatar scared me with her ugly-ness.

Yeah, she's pretty nasty...:confused:

Anyway, if anyone else has sizes to add dont be afraid!!!
Any Chance of a 19x8.5 with a 34offset fitting?

-Dylan-
so i have a 16X7.5 rim
in a 35 offset
will it fit?
There was question on this forum as to offset. It is the relationship of the wheel mounting surface in relation to the wheel center line. If the mounting surface is exactly in the center of the wheel it is a zero offset. If the wheel mounting surface is between the center line and front edge of the wheel, the measurement is positive.
Hope this helps,

Bronco Rider
Dylan Rich said:
Any Chance of a 19x8.5 with a 34offset fitting?

-Dylan-
If you are running stock spec camber, then no... Your gonnna have to run a little bit more negative camber...

http://forums.clubrsx.com/showthread.php?t=366203

IKON671 has some clearance pics of 18x8.5 35mm towards the bottom of the thread...
Those 18 look liek they barely fit. So I think 19' are a no go.

-Dylan-
great thread.
Stock backset for a OEM 7" rim is 5-11/16" Your wheel cal'c out at 6-1/16" Nice if some one could tell you if you could push it back or in another 1/8" to 1/4" and still clear suspension/fuel filler cover etc.
Did not state tire size but imagine the wall will have little or no bulge.
When you do get them installed please let the forum know how much room you have inboard.
Helps us plan our wheel / tire choices

Bronco Rider
17X8: +35 to +48. Tire sizes: 215/45-17

If I ran the +35 would they stick out too far, my car is lowered on tanabe coilovers.

Would a +47 rub on the LCA? Sorry I tried searching but the offset numbers are too short to search.
17X7: (+44). Tire sizes: 225-45-17

should be alright with neuspeed springs?
forcefedRSX said:
17X7: (+44). Tire sizes: 225-45-17

should be alright with neuspeed springs?
Okay those I'm sure will be okay with that set up. Only issue I see is putting such a wide tire on a 7" rim. But I believe its been done before and they had no problems.
Nguyen said:
17X8: +35 to +48. Tire sizes: 215/45-17

If I ran the +35 would they stick out too far, my car is lowered on tanabe coilovers.

Would a +47 rub on the LCA? Sorry I tried searching but the offset numbers are too short to search.
After a couple hours of reading and searching (lol hard to search since we can't use "35" or "48" as parameters) I found that..

Those who have ran anything +47 or higher and are lowered more at around 2" usually rub the rear inside towards the LCA. Problem can be solved with a spacer though.

+35 will sit very flush with the fender. Its very close to sticking out past hte fender. Although I'm sure it will if you go with anything wider then a 225 tire it will stick out past slightly.
Hey, what tires do you guys recommend going with 18x8.5" +40 offset rims? I was thinking 225/40 or 235/40. I'll probably end up getting 225's though.
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