Patent ID: 7000496

Claim:
A shifter mountable to a handlebar of a bicycle, the shifter actuating a bicycle transmission, a shift cable connecting the shifter to the bicycle transmission, the shifter comprising: a housing mountable to the handlebar of the bicycle; a cable spool for winding and unwinding the shift cable thereon; a takeup mechanism including a takeup tooth segment, a takeup pawl and an actuation element; and a release mechanism having retaining and locking tooth segments, a retention pawl and a locking pawl for retaining and releasing the shift cable and a release element, wherein the takeup, retaining and locking tooth segments are arranged on a disk element, the tooth segments arranged coaxially on the disk element, at least one tooth segment being arranged on a periphery of the disk element and at least one tooth segment arranged inside of the at least one tooth segment arranged on said periphery of the disk element.