Biggest wheels on a XB......

^ looks hawt x-factor

/sorry i had it wrong they are 225/30/20!! Thanks Durby!! It is actually my lil brother's Ride!!

Wow.... Do you realize the strain that is on the drivetrain. Especially if you decided to get a little spirited driving? And Oversteer must be horrible... Don't get me wrong it looks good just not my thing for my bB

It is not that bad!! It was bad when we tried putting 225/35/20 on it because they rubbed and because you have several body pieces that rub but it was good all good because the discount tire associates did not have a problem exchanging the tires for 225/30/20 (well the ones that did not get a slash on it )

Dubs- LOL

18's is the max!

I've seen 20's on an xB and they look great. The extra weight on the drivetrain wouldn't be too much worse then having cargo in the back.

Welll...not necessarily.
You're talking unsprung weight vs. sprung weight, which has a different effect on the driveline. The gyroscopic/centrifugal effect of the extra weight of large/wide wheels it what really contributes to the strain.
Strange as it seems, I had some 15x7 alloys with 205/60-15s for awhile, and I could feel a major strain at take-off and shifting even with those, compared to the stock factory alloys!

^^^True,

But if you consider the weight of a factory steel wheel vs an aftermarket alloy in a larger size, they aren't all that different. It just depends on what your rolling i guess.

Just because I had a little time i weighed stock vs aftermarket

Stock Steel 15 with tire-----33 lbs unmounted
aftermarket 18's with tire----30-40 lbs depending on tire and wheel combo. I got 30 and 39lbs with two different combinations.

With a 20 it will go up but as you can see it wasn't a dramatic difference but enough to notice.

The difference is where the weight is located in relation to the center of the wheel
a 15" wheel is 7.5" to center an 18" wheel is 9" to center
the rim on a 15" wheel has a cercumfrence of roughly 47"
the 18" rim is about 56.5
the weight being farther from center takes more force to get moving
and more importantly more force to STOP

NH boxee said:

the weight being farther from center takes more force to get moving
and more importantly more force to STOP

Click to expand...

Exactly!

HATEnFATE said:

Just because I had a little time i weighed stock vs aftermarket

Stock Steel 15 with tire-----33 lbs unmounted
aftermarket 18's with tire----30-40 lbs depending on tire and wheel combo. I got 30 and 39lbs with two different combinations.

With a 20 it will go up but as you can see it wasn't a dramatic difference but enough to notice.

Click to expand...

Just for jollies, I just weighed mine up, too:

I've got the 15x6 Scion alloys w/ 185/60-15s = 32 lbs.
My 15x7 Borbet Type S alloys w/ 205/60-15s = 37 lbs.

These are the wheels that I mentioned I could tell a huge difference with over stock, even though the wheel diameters are the same. My guess is that being a little slowed by the extra weigh combined with the effect on the gearing of a tire over 1" taller than stock made the difference.
I can't imagine what driving an xB with the 225/30-20s listed earlier must be like. That tire is about 5/8" taller than the 205/60-15! Talk about all show - no go!