| 摘要 |
<p>A braking power modulator (14) is coupled to the brake lever (26) of a brake operating device (12) for easy adjustment and viewing. The braking power modulator (14) is preferably adjustable to provide different braking powers for different riders or different road conditions. The braking power modulator 14 basically includes a mounting member (25), a brake lever (26), a biasing member, a modulating member and an adjusting member. The mounting member (25) is adapted to be coupled to a handlebar of a bicycle, and has a cable passageway with a first abutment and a second abutment. The brake lever (26) is pivotally coupled to the mounting member (25), and has a cable attachment portion (25b). The biasing member is disposed in the cable passageway, and has first and second portions with the first portion of the biasing member being operatively coupled to the first abutment. The modulating member with the adjusting member coupled thereto is movably arranged within the cable passageway and operatively biased against the second abutment by the second portion of the biasing member. The adjusting member (43) is movably arranged along the modulating member and biased toward the second abutment of the mounting member (25). A cable tensioning member is adjustably coupled to the modulating member. The biasing member is disposed in the tubular portion of the brake lever (26) under a preloaded state with a pre-set compression force. The adjusting member engages the biasing member to change the pre-set compression force of the biasing member without changing the predetermined modulator stroke of the second blocking portion. <IMAGE></p> |
