>>1644277steel wheels are stronger and heaver (also wider in old patterns of wheel)
they can be bent into and out of shape more times before cracking
however they are often chromed so provide poor grip for brake pads
but once the rust sets in and the chrome flakes off the brakes improve a little
alloy rims have a braking surface that wears down quickly and they specify a softer kind of brake pad (often marked "for alloy")
wheels are going to get bent anyway
