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post #1 of 6 Old 08-01-2014, 08:00 PM Thread Starter
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backspacing question?

i have a rock krawler 2.5 x factor lift & synergy steering components for my 2014 2 door jk.. anyways I'm about to order wheels and I'm trying to figure out what i need for back spacing on wheels because i don't fully under stand how it works.. i wanted to run 15" raceline monster beadlocks with 35s the wheels have 3.5" inch backspacing... on the rock krawler site it recommends 4.5 ....

soo can someone explain how this works because the way i understand it is.. if there is less back spacing your wheels would stick out further.. which should make the tires further away from rubbing on anything..?!

thanks
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post #2 of 6 Old 08-01-2014, 08:03 PM
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With backspacing, less is more. Less backspacing means your wheels are set further away from the chassis. This can be good for clearance, particularly if you've got fat tires. But it also causes more stress on the c's, hubs, ball joints and steering box because the center of the wheel is pushed further out from the pivot point.

Stay as close as you can to 4.5 unless you have a reason.

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post #3 of 6 Old 08-01-2014, 08:09 PM
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Oh, and if you want to understand what backspacing is, it is the distance from the outer surface of the inner wheel to the hub mounting surface.

I did a blog post a while back on DisconnectedOffroad.com to try and explain more: http://www.disconnectedoffroad.com/f...-about-wheels/. You should be able to read it without creating an account; if not, PM me here and I'll get it fixed.

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post #4 of 6 Old 08-01-2014, 08:22 PM Thread Starter
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Quote:
Originally Posted by BumpInTheRoad View Post
Oh, and if you want to understand what backspacing is, it is the distance from the outer surface of the inner wheel to the hub mounting surface.

I did a blog post a while back on DisconnectedOffroad.com to try and explain more: http://www.disconnectedoffroad.com/f...-about-wheels/. You should be able to read it without creating an account; if not, PM me here and I'll get it fixed.
thanks.. some of that read sunk in.. but will these wheels be a bad choice or?
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post #5 of 6 Old 08-02-2014, 07:45 AM
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Quote:
Originally Posted by iamdeathh View Post
i have a rock krawler 2.5 x factor lift & synergy steering components for my 2014 2 door jk.. anyways I'm about to order wheels and I'm trying to figure out what i need for back spacing on wheels because i don't fully under stand how it works.. i wanted to run 15" raceline monster beadlocks with 35s the wheels have 3.5" inch backspacing... on the rock krawler site it recommends 4.5 ....

soo can someone explain how this works because the way i understand it is.. if there is less back spacing your wheels would stick out further.. which should make the tires further away from rubbing on anything..?!

thanks
Do not do 15s as you will not be able to upgrade your tie rod and flip your drag link (possibly) because normally you need at least a 16" if not a 17" wheel for clearance. You also limit your tire size choices a ton doing 15" or 16" wheels.

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post #6 of 6 Old 08-02-2014, 08:01 AM
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Less BS may move the wheel/tire assy away from the chassis and its components while positioned in a straight line but imagine what happens when you turn full-lock. A tire hangin' too far out in the breeze is swinging a wider radius. Is it gonna hit anything now? Most probably.
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