[pat in Santa Cruz]

bathroom scales being what they are, I weighed a std grind beavertail with crank gear at 30 lbs..

My scale usually weighs me 5 lbs light (compared to the one at the doc's office). The crank showed 28 lbs on its own. I held the crank and weighed both of us, then set it down, weighed meself , subtracted my weight and got 30# for the crankshaft.