Rev-matching is a technique used when downshifting a motorcycle to match the engine speed (RPM) to the wheel speed for a smoother transition and to prevent excessive stress on the drivetrain. It helps to maintain stability and control during downshifts. Here's how you should approach rev-matching:
Prepare for the downshift: As you approach a corner or a situation where you need to downshift, prepare by applying the brakes and gradually reducing your speed. This will help ensure a smoother downshift.
Pull in the clutch: As you downshift, pull in the clutch lever to disengage the engine from the transmission.
Blip the throttle: While keeping the clutch pulled in, quickly "blip" or quickly open and close the throttle to raise the engine RPM. The goal is to match the engine speed to the lower gear you are shifting into. The blip should be quick and precise, but avoid excessive revving that could lead to wheel spin or loss of control.
Shift down: With the throttle blipped and engine RPM raised, smoothly shift down to the lower gear. Release the clutch lever gradually while simultaneously rolling off the throttle to engage the transmission smoothly.
The purpose of rev-matching is to create a smoother transition and minimize the load on the drivetrain, reducing wear and tear on the clutch plates, transmission, and rear tire. It helps prevent abrupt jerks, rear wheel lock-ups, and instability that can occur during downshifting without rev-matching.
It's important to note that the specific technique and timing of rev-matching can vary depending on the motorcycle and rider preference. Practice and experience will help you develop a feel for the optimal timing and throttle blipping required for smooth downshifts on your particular motorcycle.