At home my adjustable dumbbells go to 37.5kg (unless I use big 20kg plates that don't allow a good ROM), which I can easily do for sets of 12reps, no problem. If I put the big 20kg plates on (so not full ROM, maybe 80% ROM) doing sets of 5reps @ 50kg isn't particularly hard. I know I could get a 60kg fixed dumbbell, but for $180 + shipping, its a little more then i'd like to spend on something that is fixed weight.