Hey guys. Got a killer deal on 2013 rubicon wheels for my 2014 wrangler unlimited sport... What's the biggest tires I can put on the rubicon wheels with mine stock
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Go to a few reputable tire companies and ask what they will do. I suspect up two sizes max. The OE on standard Rubicons equates to about 32s. If you go beyond 34/35 it might look funny and not be very functional because of the rim width.
The Rubicon 10A actually went up one size from stock and were more like 33s... OE and they looked good in stock form.
Your biggest problem will be with width. I believe with a stock rim you can go 10.5 inches wide. Super swamped used to make a 35 that narrow. If there is a certain tire you want check their website for a tire chart. Look for your rim width and it will tell you how tall you can go for that manufacturer.
I've seen people using the stock rims to run 35's but you would need a spacer like spidertraxs wheel spacers for the rims to make up the back spacing. If not you will rub while trying to turn. I asked about them before and was steered away because changes the fulcrum point and adds more strain to the wheel bearings causing them to fail prematurely.
If you don't want to run wheel spacers, then try 255/80r/17, if you have the stock 17's. That's about a true 33" tire but under the 11" width and shouldn't rub off roading (aka pizza cutter). Just another option.