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## How to tell if the wheels will fitPosted: Mon Oct 31, 2016 3:18 pm

InkJet
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So i want to buy wheels from someone and they said its 18x10 so hopefully someone could explain how to measure them
#2. Posted:
002
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18 is how tall they are and 10 is how wide they are. 10" is VERY wide for a car, and pretty wide for a truck. Keep in mind most car wheels are between 5.5-6.5" wide, truck wheels being 6.5-8.5" wide.

First go to your car and look at the tire. What size is the tire? If it has 18 at the end (for example 225/65R18) the wheel will fit your tire. Next up ask for the lug pattern. Go to your car and find out the lug pattern. If there is an EVEN number of lugs: Measure center-to-center on lugs directly across from each other. If there is an ODD number of lugs: Measure from the center of one lug to a point halfway between the two lugs directly opposite on the bolt circle. Let's say your car has 5 lugs and measures 4.5" from the center of a lug to between two others. That means you have a 5x4.5 lug pattern. They might tell you the pattern on the wheels you want is 5x108 or something like that. This is just a mm number, so go to Google and type in inch to mm. 4.5" is 114.3mm so the 5x108 would not fit.

As for the width, that will depend much on offset. Offset is what pushes the wheel in or our from under the car. What car do you have and do you know the make and model of the wheels you're looking at?
#3. Posted:
InkJet
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002 wrote18 is how tall they are and 10 is how wide they are. 10" is VERY wide for a car, and pretty wide for a truck. Keep in mind most car wheels are between 5.5-6.5" wide, truck wheels being 6.5-8.5" wide.

First go to your car and look at the tire. What size is the tire? If it has 18 at the end (for example 225/65R18) the wheel will fit your tire. Next up ask for the lug pattern. Go to your car and find out the lug pattern. If there is an EVEN number of lugs: Measure center-to-center on lugs directly across from each other. If there is an ODD number of lugs: Measure from the center of one lug to a point halfway between the two lugs directly opposite on the bolt circle. Let's say your car has 5 lugs and measures 4.5" from the center of a lug to between two others. That means you have a 5x4.5 lug pattern. They might tell you the pattern on the wheels you want is 5x108 or something like that. This is just a mm number, so go to Google and type in inch to mm. 4.5" is 114.3mm so the 5x108 would not fit.

As for the width, that will depend much on offset. Offset is what pushes the wheel in or our from under the car. What car do you have and do you know the make and model of the wheels you're looking at?

17-18 diameter, 7 width for my 2008 Subaru Legacy.
#4. Posted:
InkJet
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002 wrote18 is how tall they are and 10 is how wide they are. 10" is VERY wide for a car, and pretty wide for a truck. Keep in mind most car wheels are between 5.5-6.5" wide, truck wheels being 6.5-8.5" wide.

First go to your car and look at the tire. What size is the tire? If it has 18 at the end (for example 225/65R18) the wheel will fit your tire. Next up ask for the lug pattern. Go to your car and find out the lug pattern. If there is an EVEN number of lugs: Measure center-to-center on lugs directly across from each other. If there is an ODD number of lugs: Measure from the center of one lug to a point halfway between the two lugs directly opposite on the bolt circle. Let's say your car has 5 lugs and measures 4.5" from the center of a lug to between two others. That means you have a 5x4.5 lug pattern. They might tell you the pattern on the wheels you want is 5x108 or something like that. This is just a mm number, so go to Google and type in inch to mm. 4.5" is 114.3mm so the 5x108 would not fit.

As for the width, that will depend much on offset. Offset is what pushes the wheel in or our from under the car. What car do you have and do you know the make and model of the wheels you're looking at?

Here is some better stats for my car which should give more detailed information
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#5. Posted:
002
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The image you showed has a 15-16 wheel size. Either way you need to go out to your car and figure out if it's 15, 16, 17, or 18 as a tire that goes onto a 15" tire will not go on a 16" tire.
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InkJet
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002 wroteThe image you showed has a 15-16 wheel size. Either way you need to go out to your car and figure out if it's 15, 16, 17, or 18 as a tire that goes onto a 15" tire will not go on a 16" tire.

Its 17
#7. Posted:
002
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Ok so the wheels you're looking at will not fit your current tires, you will have to get new tires.

As for the wheels fitting the car, it still depends on the offset and the tire size. The new wheels are 3.5-4" wider which is a lot. Turn your car to where it's closest to the fender and see how much room you have from the tire to the fender (or bumper, which ever is closer).

Then you'll need to find out your offset, sometimes the wheels have them on the back side of the spokes. Offset it measured from the centerline of the wheel to the hub mounting surface. Sometimes it's easier to measure backspacing. All you do here is run a straight edge on top of the wheel, then measure from the hub mounting surface up to the straight edge. Let's say that is 4" and you had 3.5" from your tire to fender (or bumper). The new wheels would have to be at least 4.5" back spacing. Also look to see if your tire is close to the frame rail at all while at full lock. If it is you'll have to keep that measurement in mind because you don't want to rub anything.

Let's say your stock set up is 4" back spacing and 3.5" from tire to fender (or bumper). Now at full lock you only have 1.5" from the tire to the frame rail (or closest rubbing point). This only gives you 5" of moving space total, the new wheels re 4" wider so if they have the right offset you'll just barely squeeze by. These aren't numbers from your car, just an example.
#8. Posted:
InkJet
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002 wroteOk so the wheels you're looking at will not fit your current tires, you will have to get new tires.

As for the wheels fitting the car, it still depends on the offset and the tire size. The new wheels are 3.5-4" wider which is a lot. Turn your car to where it's closest to the fender and see how much room you have from the tire to the fender (or bumper, which ever is closer).

Then you'll need to find out your offset, sometimes the wheels have them on the back side of the spokes. Offset it measured from the centerline of the wheel to the hub mounting surface. Sometimes it's easier to measure backspacing. All you do here is run a straight edge on top of the wheel, then measure from the hub mounting surface up to the straight edge. Let's say that is 4" and you had 3.5" from your tire to fender (or bumper). The new wheels would have to be at least 4.5" back spacing. Also look to see if your tire is close to the frame rail at all while at full lock. If it is you'll have to keep that measurement in mind because you don't want to rub anything.

Let's say your stock set up is 4" back spacing and 3.5" from tire to fender (or bumper). Now at full lock you only have 1.5" from the tire to the frame rail (or closest rubbing point). This only gives you 5" of moving space total, the new wheels re 4" wider so if they have the right offset you'll just barely squeeze by. These aren't numbers from your car, just an example.

Thank you i appreciate your help, means alot <3
#9. Posted:
2-step
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With your generation of Legacy's it looks like a common width for aftermarket is 8.5 with 18" wheels and an offset of 42-38. This is going to give you pretty good fitment. Look up "2008 Legacy wheel fitment thread" and you'll be able to see everyone's specs of their wheels as well as their tire setup and you can pick and choose which look you prefer. Fender rolling may also be needed depending on how low you are and what the offset of the wheels are.
#10. Posted:
InkJet
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2-step wroteWith your generation of Legacy's it looks like a common width for aftermarket is 8.5 with 18" wheels and an offset of 42-38. This is going to give you pretty good fitment. Look up "2008 Legacy wheel fitment thread" and you'll be able to see everyone's specs of their wheels as well as their tire setup and you can pick and choose which look you prefer. Fender rolling may also be needed depending on how low you are and what the offset of the wheels are.

He said theyd be 100% fit so hopefully they are and he said if theu dont fit he'd refund my money