Originally Posted by dolface
ally nipples are touchy (heh), they round off really easily, and as they oxidize they can lock to the spokes (mechanical bond though, not chemical)
alloy nipples suck! they do round off easy. they bond to the rim (alum + alum = bond). that's why you need eyelets on rims to use aluminum nipples (the eyelets will bring the weight back up, almost canceling out the aluminum nipples). they also only look nice if they are anodized.