Shifter (bicycle part)
bicycle component
A bicycle shifter or gear control or gear levers is a component used to control the gearing mechanisms and select the desired gear ratio. Typically, they operate either a derailleur mechanism or an internal hub gear mechanism. In either case, the control is operated by moving a cable that connects the shifter to the gear mechanism.
Location
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.
Mechanisms
There are various types of shifter:
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 - similar to a trigger shifter, but usually allows changing up to 3 gears at a time
Road bike shifter - integrated with brake levers, sometimes known as a "brifter".
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. Campagnolo soon followed with their ErgoPower system. The SRAM Double Tap was introduced in 2005.
“Shifter (bicycle part)” enters the record as bicycle component. Crown Archives preserves that source wording while asking what Shifter, bicycle and part can confirm, complicate or overturn.
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The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Jul 11, 2026. The linked authority identifier is Q748770. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1990 and 2005.
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This entry incorporates text from “Shifter (bicycle part)” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.