Alloy rims of the same style typically all come from the same blanks regardless of application, so a rim that's sold for a sierra will also be used on a landcruiser.
By that you can imagine that an off the shelf rim for a sierra will be plenty strong enough if it's also designed for the weight of a patrol/cruiser whatever.
They will scratch, and you might ding up the bead seat area, but meh, whatever. I'd be surprised if you could break an alloy without doing lots of damage to your car.
On the other hand, the same goes for aftermarket steel rims - they are all rated for plenty more weight than a sierra, so they are inherently overbuilt when used on a sierra.
Stock sierra steel rims are easy to bend ( my 16X4.5's are trashed), but ROH/Dynamic whatever are pretty hard to bend on a sierra.
My problem with alloys is the unhelpful backspacing they often have, the inability to change the backspacing, or add a beadlock except a secondleak), and the requirement for whacky wheelnuts (or longer studs - the "right" way of running a thicker wheel)
I run steel currently, but my next car will be running these:
But to do it I'll be running longer studs, possibly 14mm VW studs as I won't run those nasty acorn deep wheelnuts. I don't like them.
Just some thoughts.
PS I don't think there's very much weight difference in it when comparing say a 15X7 steel and a cheaper, cast 15X7 alloy. My Walkers are insanely heavy.
Steve.
