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Old 04-12-2015, 05:28 PM   #1
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Wheel Fitment - 2015 Clearance w/ Pics

This is just for folks looking at wheel sizes for their 2015's....

Okay, so I put new wheels and tires on the car and everything fits, but what I did was take measurements and pictures before mounting the tires to check clearances and make sure everything was good before mounting the tires.

My wheels are 20x10's w/ 40 mm of offset and 7" of backspacing. Tires are 275/35/20's all the way around.

They all fit and they clear everything up front, but it IS close. Between the edge of the wheel and the shock body is roughly 1/2" - 3/4", enough to slide a finger between. A 9.5" wide wheel with the same offset would provide a little more breathing room if you're concerned about that clearance, but like I said it DOES fit and it DOES clear. I would NOT go wider on either the wheel or tire up front.





Out back, there's no drama. You can EASILY go with an 11 - 11.5" wheel back there and a 305 - 315 wide on the tire if using the same offset and going deeper in the backspacing...





The overall fitment is good with 10" wide wheels all the way around, but the clearance up front might make some folks nervous and a 9 - 9.5" wide wheel might give you a little more wiggle room.

But, this is what they look like all mounted up...










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Old 04-13-2015, 08:17 AM   #2
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I heard that if the tires in the front are too big or too wide, it will be hard to fully turn the wheel. is that a real thing?

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Old 04-15-2015, 07:27 AM   #3
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In theory, yes. In practice, it's not really noticable.

Anytime you go wider or stickier on a tire you're increasing the surface area in contact with the ground, creating more friction. This will have an impact on how much force it takes to overcome static friction when the car is stopped. Will it be noticable to you in the car? That depends on how much assist you actually get from the power steering.

Also, if you change the backspacing or offset of the wheel, you're changing the distance that the force has to act on the wheel to turn it. Make it stick out farther, the force needed increases. Make the distance shorter and the force required will decrease. All you're doing is applying some very basic physics to it and you can see how much of an increase / decrease it puts on the system.

It's the same thing with brakes....larger brakes not only have a larger surface area, but they also have an increased radius which gives them a larger mechanical advantage.
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