I finaly found some wheels I would like to get for the Alpha....

Problem is they only come in 18" and I will be taking this Hummer on more than a few off-road adventures, so I hate to go bigger than 17" wheels. Anyone off-road on 18's? I cringe just asking that question! [sm=smiley29.gif]

[IMG]local://upfiles/3620/F5CFA1900612442392A72428B58CD721.jpg[/IMG]

 

my neib has 20's w/off road tires, the look is sweet but I'm not sure about the off road abilities, his is more show than go!!! (not a hummer)

 

WOW! No thanks!
I think I would rather pound my dick with a hammer then off-road on 20" wheels, that would be some very expensive wheeling!

 

wheels are wheels,they get scratched,you buy another.i mean in the end,go big or go home right.just my .02

 

Looks or cost of larger wheels aside, the biggest issue I see with off-roading on larger wheels is the low profile tires don't give you as much side wall. You really need the longer sidewall to help soften your ride. Like you stated, I wouldn't go larger than 17". But it really comes down to how stiff of a ride you are willing to take.

 

Larger rims limit the ability to air downfor traction and floatation as well, but I figure you guys know that, cuz that's a big part of selectingoff road wheels. As I understand it, 17" is the acceptable breaking point, but it is your rig and $.

 

a larger wheel would also effectively raise your gearing which isn't the best for off road either!

 

the wheel size won't change your gearing, all that matters is the tire size. i had 18" wheels on the bus when i first got it, but didn't do any real offroading until i got my 17" rims on. i'd say keep on looking.

 

Ahh you are correct sir. I wasn't thinking about the lower profile tires.[sm=oopssign.gif]

 

actually, none of those will change the gearing, but they'll change the ratios that the speedo relies on to maintain accuracy. bigger or smaller tire than stock will throw off the speedo, as well as your mileage computer.