As chain line continuously (theoretically) jumps to being tangent to inscribed circle and circumscribed circle of the virtual sprocket polygon, I was curious to see the magnitude “wobbling” near small sprockets and the adjustment needed by the chain tensioner… I’m posting here the results.
Very small sprockets (Z=3, unrealistic) to exaggerate any possible phenomena:
The tensioner is not working a lot.
Crankset have contant speed, I can see some inconstant speed on the wheel sprocket.
There is no inertia of the chain elements and no elasticity, but apparently even with Z=3 the situation doesn’t seems that bad.
Higher Z count show almost no wobbling/hiccups…
Under the hood:
