[remy_martian]

The wheel torque is reacted to by the frame through the swingarm. Physics 101.

The motor is invisible to the frame if it's centered on the swingarm pivot. All forces are purely between the motor and wheel and the reaction to the motor torque is by the swingarm lever acting on the axle pin. Not the swingarm pivot. The torque of the motor is translated to the wheel. You coupd argue that the motor is pulling on the chain which lifts the frame at the swingarm pivot, but that is defined as wheel torque.

So, he was correct.

 

[remy_martian]

...by the WHEEL

 

[remy_martian]

Yes...but not the motor. Everything he posted is correct.

 

[remy_martian]

To the frame - AND to the wheel - as Newton said opposite and equal

Almost equal.

Newton didn't burn rubber obviously 😂

 

[remy_martian]

You cheated, old man.

You introduced a new reaction element - brakes, which spoil the torque translation.

Fun as this is...I need to get some sleep or I'll be crankier than usual in my postings tomorrow 🤓