BETÄTIGUNGSHEBEL FÜR EINE FAHRRADGANGSCHALTUNG

摘要

This is a speed change control lever device for a bicycle, comprising: a tubular body portion (7) rotatably supported by a lever shaft (9) extending downwardly from a bicycle body in an inward and downward position of a grip portion (2) provided at an end portion of a handle bar (1); and a control arm (8) extending from the outer periphery of the tubular body portion (7) in a radially outward direction, wherein speed change operations can be performed in a state of gripping the grip portion (2) of the handle bar (1), the rotation control range of the control arm (8) is enlarged to increase the number of the speed change stages, and the following measures are taken for the purpose of smoothly carrying out the rotation control of the control arm (8): namely, the control arm (8) includes: a first control arm portion (13) having a turning locus directly under the handle bar (1) or the grip portion (2); and a second control arm portion (14) having a turning locus a predetermined distance apart from the undersurface of the handle bar (1) or the grip portion (2).