WD Pro wrote:
I am not a physics guru but my logic tells me that unless the object (in this case a bike) needs a second (and maybe third) point of contact to balance it (in this case your hands) then these points are also taking some of the weight. If they weren't taking any weight you wouldn't need them and the object would balance without them ?
What do you think ?
he is right, unless the bike can stand on it's own unaided and contact will add or subtract from the actual weight.
best way to weigh your bike with just bathrooms scales to hand is the simple :-
A) step on scales and note the weight.
B) pick bike up and step on scales and note the weight.
subtract A from B = bike weight.
this is however just a representative weight as bathroom scales suck, my bathroom scales had me drop a stone in weight over a 1 week period earlier this year then pile 2st back on in just under 2 weeks.
now although that is possible to do (highly unhealthy i should imagine to do) nothing in those 3 - 4 weeks changed.
similar calorie intake to normal, similar excercise regime to normal, so take your bathroom scale weight output with a pinch of salt