Downshifting without using the clutch, commonly known as "clutchless downshifting," requires careful timing and throttle control to prevent the motorcycle from popping up or experiencing a sudden jolt. While clutchless downshifting is possible, it's important to note that using the clutch is the recommended and safer method. However, if you choose to perform clutchless downshifting, here's a general technique that can help:
Approach the desired lower gear: Gradually reduce the throttle and let the motorcycle decelerate while in gear.
Apply light upward pressure on the gear shifter: With your foot, gently nudge the gear shifter upward as if you were engaging the clutch. This helps to load the transmission gears and facilitate a smoother transition.
Match the engine RPM: While maintaining slight upward pressure on the gear shifter, adjust the throttle to increase the engine RPM. The goal is to match the RPM to the speed at which the lower gear would engage smoothly if the clutch were used.
Release pressure on the shifter: As you reach the appropriate RPM range, momentarily release the upward pressure on the gear shifter.
Simultaneously blip the throttle and shift: Quickly and precisely roll off the throttle slightly and immediately apply a quick blip or "rev" of the throttle. This action helps to match the engine speed with the transmission speed and aids in smoother engagement of the lower gear. While blipping the throttle, quickly and smoothly nudge the gear shifter downward to engage the lower gear.
Maintain throttle control: After shifting, gradually roll back on the throttle to match the new gear and smoothly accelerate.
Remember, clutchless downshifting requires practice, experience, and a good understanding of your motorcycle's behavior. It's essential to be mindful of the potential risks associated with clutchless downshifting, such as increased stress on the transmission components. Therefore, using the clutch and following the standard downshifting technique is generally recommended for smoother and safer gear changes.