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I was tinkering on my sling...again...lol. And a thought cam to mind...would/could, a 305 wheel fit on the front? How would it look? How would it handle? Again...just a pondering thought...lol.
I got a 275 (+35 offset) and they stick around 1" I would imagine 305 is "possible"but would have to have a serious offset that would strain the suspension (or whatever else). Probaly would have that monster truck look . Would be interesting to see MONSTER TRUCK.jpg
 

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....takes out his magnifying glass to search for used 2 SLR rear tires and rims.
 

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Unless you are only chasing looks, going with tall and wide front rims is a huge disapointment. Steering and turning response gets really slow/sloppy. I would never selected anything bigger than 20x10 in the front.
 

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I agree Trav. I wouldn't do it for driving around with them...but it would be different. Somewhat a batmobile look?
 

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I hope this helps. I currently bought these for mine with 245/30R22 front , and 295/25R22 rear. I will have everything in next week. I did all the calculations and they should work fine. I will send pics when everything is mounted. Total for everything was around $1200. Tires, wheels,cen. rings, stems, lugs. I also will be running the balancing beads to keep the wheels clean with no weights.

Rosso Reactiv 701 Wheel 22x10.5 Chrome 5x4.5 (5x114.3) 40mm Offset
Rosso Reactiv 701 Wheel 22x8.5 Chrome 5x4.5 (5x114.3) 40mm Offset
 

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Here is some information on the wheels size and offset for both models.

SlingShot SL:

Front Wheels 18X7.5 with +42mm Offset / 43.5 lbs with tires
Rear Wheel 20X9 with +45mm Offset / 53 lbs with tires

The SL's premium wheels are wrapped with 225/45R18 up front and 255/35R20 in the rear.

SlingShot Base:

Front Wheels 17X7 with +42mm Offset / 46.07 lbs with tires
Rear Wheel 18X9.5 with +45mm Offset / 57.07 lbs with tires

The Base gets 205/50R17 up front and 265/35R18 in the rear.

Lug nut Pattern is 5X114.3 for both

Keep in mind that while the size of the wheel is measured in inches, the offset is measured in Millimeters (mm).


What most people will look for is a wider rear tire... The main concerns with going with a wider rear are: keep the rear tire centered and not rub the swing arm...

So let's start with our center point. The rear offset is +45mm which is the center and keeps the wheel dead centered.
Ideally you will go for a wheel with +45mm offset...


The highest number (in my opinion) that you can go without noticing that the wheel is off the center is +/- 10mm

The higher the number of the offset the closer to the swing arm

The lower the number the farther out from the swing arm.


In other words:

+55mm will be 10mm closer to the swing arm (off center to the Right) Wheel cannot be too wide.
+35mm will be 10mm farther to the swing arm (off center to the left) Wheel can be wider.
I agree with XXX but my numbers are + 40mm for the rear. Thats 40mm from the face away from the suspension. This has worked for 9,10,11 inch rims. I am running a 315x20 on an 11inch rim, its perfectly centered.
 
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