Patent ID: 7117762

Claim:
A rotatable handgrip shifting device mountable on a bicycle handlebar and connected to a first bicycle gear changing mechanism by a cable within a tube and reversibly operable at discrete shift points corresponding to the gears of the first bicycle gear changing mechanism, the shifting device comprising: a handgrip rotatable about the handlebar; a spool rotatable with the handgrip; a housing secured to the handlebar and including a first gear display indicating a first plurality of discrete shift points of the first gear changing mechanism; and a first flexible member having, a first pointer at a first end and a first spool tab at a second end, the first flexible member configured such that the first pointer is reciprocally displaceable along the first gear display in response to rotation of the handgrip, the first spool tab being removably attachable to one of the said spool and said handgrip, the first spool tab configured such that the first flexible member spools about a handlebar axis at a first radius permitting alignment of the first pointer with the first plurality of discrete shift points indicated on the first gear display; and the first gear changing mechanism, the first gear display, and the first flexible member being interchangeable with a second gear changing mechanism, a second gear display, and a second flexible member, respectively, the second member having a second pointer at a first end and a second spool tab at a second end, the second flexible member configured such that the second pointer is reciprocally displaceable along the second gear display in response to rotation of the handgrip, the second spool tab being removably attachable to one of said spool and said handgrip, the second spool tab configured such that the second flexible member spools about the handlebar axis at a second radius permitting alignment of the second pointer with the second plurality of discrete shift points indicated on the second gear display.