Device for adjusting the brake pad relative to the wheel rim of a bicycle

A brake caliper assembly for a bicycle having a front fork, comprising:

• a brake caliper including a frame portion and a head portion extending from the top of said frame portion, said frame portion having two side walls with a bottom connected between said two side walls, each of said side walls having an aperture defined therethrough, a shaft adapted to be fixedly connected to the front fork and extending through said two apertures of said two side walls;
• a supporting member having a brake pad connected thereto, a lug extending from a side of said supporting member and pivotally received between said two side walls of said frame portion;
• a cam member fixedly mounted to said shaft and located between said two side walls of said frame portion;
• a pushing member pivotally received between said two side walls of said frame portion, said pushing member having the first end thereof contacting said cam member and the second end thereof contacting said supporting member, and
• an actuating means connected to said frame portion and contacting said cam member so that said supporting member is pivoted by said pushing member which is pivoted by said cam member when said actuating means is operated.