By "an additional 30lbs of body weight through my arms" are you describing the vertical downward force exerted by the hands on the bars? Or something else?
Thanks
Jonathan
By "an additional 30lbs of body weight through my arms" are you describing the vertical downward force exerted by the hands on the bars? Or something else?
I'm describing the amount of body weight going through my arms.i haven't mentioned the load on the bars at all
Going through your arms to where? Somewhere other than through the hands on the bars? How is it affecting the measured load in your method of measurement with scales under the wheels if it doesn't connect to the bike through the bars?jois wrote: ↑28 Sep 2022, 12:00amI'm describing the amount of body weight going through my arms.i haven't mentioned the load on the bars at all
I didn't say it didn't go through the bars I just didn't mention itJdsk wrote: ↑28 Sep 2022, 12:04amGoing through your arms to where? Somewhere other than through the hands on the bars? How is it affecting the measured load in your method of measurement with scales under the wheels if it doesn't connect to the bike through the bars?
Thanks
Jonathan
Yes, that's precisely the thought experiment that shows why the described method of measurement with scales under the wheels doesn't give the force on the bars (and the hands) and on the saddle (and the pelvis).
Whether you said it or not do you now agree that "the amount of body weight going through my arms" is the vertical force exerted by the hands on the bars? Or something else?jois wrote: ↑28 Sep 2022, 12:05amI didn't say it didn't go through the bars I just didn't mention it
The bars are largely irelivent. 30lbs of body weight has transferred from back to front and have loaded my arms up by 30lbs of body weight. That's what I said in my first post and what I'm saying now. If you have an explanation that doesn't involve extra load on my arms I'm all earsJdsk wrote: ↑28 Sep 2022, 12:09amWhether you said it or not do you now agree that "the amount of body weight going through my arms" is the vertical force exerted by the hands on the bars? Or something else?
Thanks
Jonathan
You may as well say if not through the stem or the frame or the forks or the wheel spindle or the tyres. It's a chain I'm not working my way through every component as you have a handle bar obsession .
Nobody has "contested" that there's a "correlation" or "relation" or "influence" or that one affects or the other. What three of us are saying is that you can't measure the amount of the body weight carried by the hands and by the pelvis simply by measuring the weight at the front and rear wheels with scales.
You coming across as a mite obsessive . And some what unable to grasp simple concepts like body weight going through arms if they are holding body weight.Jdsk wrote: ↑28 Sep 2022, 12:35amNobody has "contested" that there's a "correlation" or "relation" or "influence" or that one affects or the other. What three of us are saying is that you can't measure the amount of the body weight carried by the hands and by the pelvis simply by measuring the weight at the front and rear wheels with scales.
There's a simple thought experiment above that shows that.
And if you were able to answer what you mean by "an additional 30lbs of body weight through my arms" I'd show why without that thought experiment.
Where is that weight going "through" to?
Thanks
Jonathan
So what's the analogy of "the floorboards, the joists, the wall, the foundations" for the problem under consideration? It's the bars and the frame and the wheels. And the saddle and the frame and the wheels.jois wrote: ↑28 Sep 2022, 12:45am...
If I do a press up about 70% of my body weight goes through my arms.
Now that weight then goes through the floorboards, the joists, the wall, the foundations and off to the centre of the earth.
Non of that alters the fact that 140lbs of my body weight is going through my arms
,,,
I'm describing what I said in my opening posts, I've been consistently repeating the same thing. If you want to call it reactive normal forces that's ok with me il call it % of body weightJdsk wrote: ↑28 Sep 2022, 12:53amSo what's the analogy of "the floorboards, the joists, the wall, the foundations" for the problem under consideration? It's the bars and the frame and the wheels. And the saddle and the frame and the wheels.jois wrote: ↑28 Sep 2022, 12:45am...
If I do a press up about 70% of my body weight goes through my arms.
Now that weight then goes through the floorboards, the joists, the wall, the foundations and off to the centre of the earth.
Non of that alters the fact that 140lbs of my body weight is going through my arms
,,,
Can we agree on that?
Thanks
Jonathan
PS: You're actually describing the reactive normal forces to the weight rather than the weight. But let's put that to one side.
The explanation of how the force is distributed will follow when you feel able to discuss how the "weight through your arms" gets to the front wheels.
I think I confirm the chain a few posts ago