- type of manual transmission used on motorcycles and high-performance cars forauto racing, where gears are selected in order, and direct access to specific gears is not possible.
- A true sequential transmission will very often use dog clutch engagement
-Engagement using dogs only requires a very brief interruption of engine torque to complete a shift into any adjacent gear.
-This allows shifting between gears without the use of the clutch. The clutch would normally be used only for standing starts.
-On a true sequential gearbox, the shift lever operates a ratchet mechanism that converts the fore & aft motion of the shift lever into a rotary motion.
-rotary action turns a selector drum (sometimes called a barrel) which has three or four tracks machined around its circumference.
-Running in the tracks are the selector forks, either directly or via selector rods.
-Tracks deviate around the circumference and as the drum rotates, the selector forks running in the tracks are moved to select the required gear.
-an additional benefit of sequential manual gearboxes is that use of the clutch via foot pedal or hand control can be minimized or completely obviated, with the clutch only used for starting from a complete stop.
-Pulling on the right-hand paddle makes an up-shift and pulling on the left-hand paddle makes a down-shift.
-paddle-shift. Instead of a manual gear lever, the driver is provided with (usually) a pair of flipper paddles on the steering wheel, rally cars often utilize just a double-acting single paddle.
- many road-car-driving enthusiasts prefer a standard manual transmission, which—with a clutch pedal and the ability to skip gears—allows more driver input and a more traditional driving experience.
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