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Grip shifter - a wheel with click stops surrounding the handlebar is turned until the desired gear is reached, though typically one gear at a time; Trigger shifter - a lever is pulled or pushed to change gears one at a time; Thumb shifter; Road bike shifter - integrated with brake levers, sometimes known as a "brifter". [2]
Shimano STI Dual Control shifter and brake lever: 1. Main lever 2. Release lever A. Pulling the main lever towards the rider applies the brake B. Pushing the main lever towards the center of the bike downshifts one, two or three gears depending on how far the lever is pushed (right hand shifter) or changes from a small chainring to a larger chainring (left hand shifter)
Most hub gears are operated in a similar manner, with a single twist, trigger or thumb-shifter. An exception is the older style of Sturmey-Archer 5-speed, which used a second shift cable to change between close and wide-range sun gears, effectively giving two 3-speed hubs in one unit.
A set of small satellite shifter buttons, called Blips, can be connected to the shift levers or aero shift module (BlipBox) and placed anywhere along the handlebars as part of the system. A maximum of four Blips can be used per bike. The company also took the opportunity to introduce a new shifting convention with this system.
This version differs slightly from the 700 model and requires a motor unit with a battery, and an electronic shifter. Shimano offers different styles of electronic shifters that fit a wider range of handlebars than the trigger shifter for the 700 model. It is not possible to use the motor unit or electronic shifters with the 700 model. [11]
Some high-performance sport bikes use a trigger-shift system, with a handlebar-mounted trigger, paddle, switch, or button, and an automatically operated clutch. [13] [106] [107] Some dirt bikes use this system, which is sometimes referred to as an auto-clutch transmission. [31] [29] [32] These include the Honda CRF110F [108] [109] and Yamaha TT ...
Column shifters are mechanically similar to floor shifters, although shifting occurs in a vertical plane instead of a horizontal one. Because the shifter is further away from the transmission, and the movements at the shifter and at the transmission are in different planes, column shifters require more complicated linkage than floor shifters.
A park by wire system engages the parking pawl of a transmission using electrical means, without the traditional mechanical system which involves linkages between the gear shifter and the transmission.