Originally Posted by mjf232
When my Sahara comes in I want to change out the stock wheels and tires. I know it comes stock with 18's and I'm thinking I want to go to 17's with 31 or 32 inch tires.
I see on here mostly everyone runs 15 or 16's and was wondering if thats mainly due to cost or is there something I'm missing with going with 17's?
Several reasons for going with smaller rims:
1. Tires cost quite a bit less (see post above) in the 15-16" size than they do for 17's and up.
2. Tire and rim combo is lighter, and is less apt to trash your powerband and require regearing, which will cost you about $1500.
3. There's a much greater selection of tires in the 15-16" range than in the 17" range.
4. With the smaller rims, you'll have a greater contact patch on the pavement, trail, mud, snow, etc.
5. With the Sahara's stock rims (18's) and to a lesser extent the 17's, you have to run smaller tires (given the same clearance) than you would with the 15-16" rims. For example, if you run 33's with your stock 18" rims, they'll rub without a lift. Drop your rim size to 15, and you can get away with a lot more.
All that said, it's your Jeep...you want bigger rims, have at it.
If you decide to go with aftermarket rims, make sure you buy wheels in the 4.5" backspace range (or less), to minimize the potential for rubbing. The smaller your bs #, the more your tires will stick out from your Jeep, which, beyond a certain point, may cause you problems with the law. Most states have statutes that govern how far your tires can stick out past the fenders, if at all.
Also, if you decide to go with 15's, check to make sure the wheel you want will clear your brake calipers. Some will, some won't. This is usually not a problem with 16's.