Abstract: A bicycle brake mechanism includes a holder having a pair of panels. A bridging member connects the lower portions of the panels together so as to form a channel for supporting a brake cable. A bolt is engaged through the upper portions of the panels and has an aperture formed in the middle portion for engaging with another brake cable. The channel is formed between the panels so as to allow the two brake cables to be aligned with each other and so as to better facilitate the operation of the brake mechanism.

Abstract: A brake mechanism includes a brake arm having an orifice formed in the bottom and having a pin secured to the upper portion. A brake shoe is secured to the brake arm for brake the wheel. A block is fixed to the bicycle and has a tube engaged through the orifice such that the brake arm may be rotated relative to the tube. A support is secured to the tube, and a spring rod has a lower portion secured to the support and has an upper portion engaged with the pin for biasing the brake shoe away from the wheel. The spring rod may be easily assembled.

Abstract: A brake mechanism includes a pair of brake arms pivotally coupled to the bicycle. The brake arms each includes an oblong hole formed in the middle for engaging with a pair of bolts which may be adjusted along the oblong holes. The brake shoes are secured to the bolts which are directly secured to the brake arms such that no vibrations will be generated while braking. A pair of nuts each has a curved surface for engaging with a curved depression of a pair of gaskets so as to allow the nut to rotate relative to the second gasket.