Torque/Efficiency comparision 19 inch vs 17 inch moped wheel/tire

gobi

10 kW
Joined
Jan 9, 2021
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540
Leaf bike 6t 1500w motor

pick any battery, 48v 72v, 40 amp sustained output capable.


Comparing a 17 inch moped wheel/tire vs 19inch moped wheel/tire

Will the torque difference off the line be proportional to their circumference?

Is it worth going down to 17 inch, mostly low speed stop and go.
 
Use the grin calculator. Calculate it.

I answered this question last week. Maybe find that link. ... I set up the calculator and everything.
 
DogDipstick said:
Use the grin calculator. Calculate it.

I answered this question last week. Maybe find that link. ... I set up the calculator and everything.

Did it, seems to have a off the line torque delta. but how much of that is just off the line?

Am I reading it correctly?
 

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This is what I setup for our friend here in the other thread. Yeah different motors, numbers, ect.... but the comparison is similar. I used the Tork throttle setting on the custom controller setting.

yeah looks about right. Change in tork between the two, change in final RPM under load.. One accelerates more, you can see the different consumption. Yeah. Looks about right to me. Distance per second per second is.. Acceleration. It is what matters (Feet/sec/sec), and the more " Torky" the bike is, the higher this acceleration number will be.... Amps off the line. Yeah. Drag the sliders around to see how it acts at different throttle inputs and speeds.
Thread:>> https://endless-sphere.com/forums/viewtopic.php?f=3&t=115973&p=1713551#p1713551

https://ebikes.ca/tools/simulator.html?bopen=true&motor=MCRO5004_Sinks&batt=cust_104_0.02_20&cont=cust_200_400_0.03_T&kv=16&hp=0&cont_b=cust_200_400_0.03_T&motor_b=MCRO5004_Sinks&batt_b=cust_104_0.02_20&hp_b=0&kv_b=16&wheel_b=24i&axis=mph
 
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