What Causes the Jerking Sensation When Downshifting a Motorcycle?

[VanViolet]

Downshifting with a jerking sensation is caused by downshifting at too high a speed. For underbone motorcycles, speeds above 20 mph can generally be handled in fourth gear without the need to downshift. If you downshift to third gear or lower (e.g., second gear) at speeds above 20 mph, it will cause the engine to lug, resulting in a strong jerking sensation, which is also harmful to the engine. More details are as follows: Steep Slope Deceleration: When riding an underbone motorcycle, downshifting is usually unnecessary unless encountering very steep slopes. If you need to stop, you can first ease off the throttle to slow down, then shift directly to neutral by pressing the gear lever forward once after coming to a complete stop. Downshifting After Engine Shutdown: You can also shift to neutral after turning off the engine. While riding, avoid downshifting to second gear unless the speed has been significantly reduced. Moreover, never downshift to first gear while moving, as it will definitely cause severe engine lugging.