Originally Posted by
FBinNY
I stopped reading at that point because I don't care about your bike's weight, or any other, including mine for that matter.
However, I thought I'd let you in on a little secret about digital scales. Most (non-scientific) digital scales have resolutions much finer than the actual reading capability of the measuring element. So, while the 0.1# resolution is very comforting, it doesn't imply actual accuracy anywhere near that.
This makes a problem because people reweigh stuff to check and the scale makers would get nasty letters. To avoid that they sneak in a logic chip, which retains the first result, and snaps anything close back to that. The reading will only change when the difference is greater than a preset trigger or after a set time interval.
I post this only to counter the myth that digital stuff is more accurate than analog. In most cases of comparable quality the opposite is true.
Yes, bathroom scales (even digital balances) are a poor instrument for weighing a bicycle. Even the Chinese fish/luggage scales for under $10 are significantly better. The Park brand scale is probably pretty good, but I am happy with the much cheaper fish scale.
I do have a bathroom scale which gives widely different readings on successive weighings and a standard deviation considerably greater than the scale resolution of 0.1 lb. It must be missing the cheater chip. But it would suck for weighing a bike.