Shifter (bicycle part)

In either case, the control is operated by moving a cable that connects the shifter to the gear mechanism.

Traditionally shifters were mounted on the down tube of the frame or stem.

For ergonomic reasons, they tend to be located somewhere on the handlebars on modern bicycles.

There are various types of shifter:[1] In 1990, Shimano introduced their Shimano Total Integration, STI, shifting levers for road bicycles, this was an indexed shifting system and the first to integrate shifting with the brake levers.

The SRAM Double Tap was introduced in 2005.