Malayalam Rev Matching Tutorial for Motorcycles 

Malayalam Rev Matching Tutorial for Motorcycles
Rev matching is used when down-shifting to smooth the transition between gears and prevent shock loads through the transmission. It’s a useful skill for the road and track for both cars and motorcycles.
When the motorcycle is in motion with the clutch engaged, there is a mechanical connection between the engine and wheels which keep them in sync with each other.
When shifting, however, depressing the clutch is required. This breaks the mechanical connection between the engine and wheels, and the engine speed is no longer linked to that of the wheels.
When upshifting, this is usually not a problem, as the tendency of the engine to reduce speed itself without gas will slow it to loosely match the lower speed of the higher gear.
However, when downshifting, the engine needs to speed up to come to speed with the wheels.
If the accelerator is not "blipped" (or briefly and quickly pressed to speed up the disengaged engine), the engine will have to take power from the wheels and momentum of the motorcycle to come to speed, which is often accompanied by a sudden deceleration of the vehicle due to the power suddenly going to the engine, often described as a "lurch" or "jolt".
This sudden external acceleration of the engine through the transmission also causes increased wear on the mechanics of the motorcycle.
Therefore, a staple of advanced is the "rev match", or "throttle blip", in which the rider quickly brings the engine up to speed with the wheels by use of the throttle.