shirley_hkg wrote:
youtu.be/F8fpUXcyr7s
We've been travelling in our Chinese way for 2 decades, 50_ish Km a day.
@Shirley _hkg Is it common to see partners riding buddy boards like that? I've never seen that here. Do you have some close up pics.
shirley_hkg wrote:
youtu.be/F8fpUXcyr7s
We've been travelling in our Chinese way for 2 decades, 50_ish Km a day.
Irving wrote:@Shirley _hkg Is it common to see partners riding buddy boards like that? I've never seen that here. Do you have some close up pics.
stevelawiw wrote:Made my own a few years back, no one I know will ride on it! A compete waste of time
flagman1776 wrote:Shirley, I see your assistant step was originally sprung... and that wasn't enough cushioning.
stevelawiw wrote: sober
Burgerman wrote:Well physics...
Weight is everything. If you double the weight of a user/chair combo then you absolutely need double the motor power (double the torque) at every speed, at every turn etc.
Burgerman wrote:Well physics...
.....It also takes double the power out of the battery at every speed and at every manoever. And worse, the faster you take the power from the battery the less you get in total.
Wrong, weight does't affect max speed.
You'll need more time/distance/fuel, but independently of the vehicule weight the max speed will not be affected.
I ignore influence of tires crushing wich is nothing. And load is inside the vehicule not on top of the roof.
Calculating rolling resistance
This equation is used to calculate the force of rolling resistance from each tyre:
FRR = CRR x weight
FRR is the rolling resistance force.
CRR is the coefficient of rolling resistance (a number used to rate each tyre at a given pressure),
weight is the force due to gravity being exerted on each tyre (= mass (kilograms) x 9.8).
The type of tyre and the mass of the bike plus rider are the only two variables.
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