Wheels size and how are they read.
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7th Gear
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Wheels size and how are they read.
I hope this isnt too newbish of a question. Up until now all ive done is buy rims . I haven't really looked at the different's in them Im looking at rims yet again but have seen that its not just the size anymore but another number after that. for example. 18 x 7.5 or 18 x 5 does the rear number mean wheel with. And if it does do you put bigger wheel with on the front or rear. like a said a bit newbish but hey. If you dont ask. you'll never know.
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Stay Out Of the Left Lane
Joined: Oct 2003
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From: SE Mass --- > Central VA --- > SE Mass
OP here is a thread that may help with your selection. - https://acurazine.com/forums/tires-w...d-pics-577276/
Tirerack also has good info on various subjects. If you see a rim that is 18x7.5 +42 for example - 18 is diameter, 7.5 is width, and +42 is the offset.
When it comes to wheel widths there are two approaches, function or form. Some go for an even mix of both. Function-wise, the only reason to have wider wheels is to give the drive wheels more bite. Since it looks bad to have wider wheels at the front of the car, staggered fitment is traditionally done on RWD cars where it looks natural/makes sense to have wider wheels in rear. The only time people [should] put wider wheels on the front of a car is if they are dragging it, at which point the setup is not usually for street use.
Form-wise, since the rear corners almost always allow for a wider rim/tire than front, people will sometimes put wider wheels on the back even if the car is FWD just to fill the car out and give it a more aggressive stance. This is simply for cosmetics.
When you stagger fitment, other factors come into play like tire rotation (or lack therof). The cheaper, easier approach is to have square fitment front and back. But it’s up to personal preference.
When plus-sizing wheels, you want to pay close attention to wheel and tire size. You always want to stay as close to the factory overall diameter as possible, to keep your speedometer and odometer accurate or close to it. If you decrease rim diameter, you need to increase tire sidewall. Or if you increase rim width, you need to decrease tire profile. Wheel and tire width come into play too, but I’m going to let you read up on that. Good luck!
When it comes to wheel widths there are two approaches, function or form. Some go for an even mix of both. Function-wise, the only reason to have wider wheels is to give the drive wheels more bite. Since it looks bad to have wider wheels at the front of the car, staggered fitment is traditionally done on RWD cars where it looks natural/makes sense to have wider wheels in rear. The only time people [should] put wider wheels on the front of a car is if they are dragging it, at which point the setup is not usually for street use.
Form-wise, since the rear corners almost always allow for a wider rim/tire than front, people will sometimes put wider wheels on the back even if the car is FWD just to fill the car out and give it a more aggressive stance. This is simply for cosmetics.
When you stagger fitment, other factors come into play like tire rotation (or lack therof). The cheaper, easier approach is to have square fitment front and back. But it’s up to personal preference.
When plus-sizing wheels, you want to pay close attention to wheel and tire size. You always want to stay as close to the factory overall diameter as possible, to keep your speedometer and odometer accurate or close to it. If you decrease rim diameter, you need to increase tire sidewall. Or if you increase rim width, you need to decrease tire profile. Wheel and tire width come into play too, but I’m going to let you read up on that. Good luck!
Last edited by RedRyder; Oct 30, 2014 at 08:26 AM.
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