The K-650 was superseded by model MT-9 650 cc, which was available in both solo and sidecar models ( often referred to as the best " Cossack " ) as it was reliable and featured a new transmission with reverse gear and an automatic declutching mechanism incorporated into the riders foot pedal.
12.
:If your car has synchromesh ( as all modern cars do ) then briefly releasing the clutch while in neutral then depressing it a second time as you slide back into gear ( known as'double-clutching'or'double-declutching'if you are British ) is strictly optional for heel and toe technique.
13.
Many older ( up to 1970s ) cars also lacked synchronisation on first gear ( for various reasons cost, typically " shorter " overall gearing, engines typically having more low-end torque, the extreme wear on a frequently used first gear synchroniser . . . ), meaning it also could only be used for moving away from a stop unless the driver became adept at double-declutching and had a particular need to regularly downshift into the lowest gear.
14.
Early semi-automatic systems used a variety of mechanical and hydraulic systems including centrifugal clutches, torque converters, electro-mechanical ( and even electrostatic ) and servo / solenoid controlled clutches and control schemes automatic declutching when moving the gearstick, pre-selector controls, centrifugal clutches with drum-sequential shift requiring the driver to lift the throttle for a successful shift, etc . and some were little more than regular lock-up torque converter automatics with manual gear selection.
