Abstract: A bicycle seat frame includes a front unit, a middle unit and a rear unit, each unit includes two pads located on two sides of the seat frame and multiple connection members are respectively connected between the pads of the front unit, the middle unit and the rear unit on the two sides of the bicycle seat frame. Gaps are defined between the front unit, the middle unit and the rear unit. Two rods are connected between the front unit and the rear unit and connected to the seat post. The connection members are flexible so as to absorb the shocks.

Abstract: A detachable brake lever assembly for a bicycle includes a brake seat connected to a handlebar of a bicycle. The brake seat has an engaging portion formed thereon and extending therefrom. The engaging portion is formed into a shape of an equilateral polygon. A holder is connected to the brake seat. The holder has an engaging recess defined therein and corresponding to the shape of the engaging portion for engaging with the engaging portion. A pull lever is rotatably connected to the holder; wherein the engaging portion is able to engage with the engaging recess in different positions corresponding to the shape of the equilateral polygon. The brake lever which is assembled with the holder is adjusted with the holder relative to the brake seat for appropriately cooperating with different types of bicycle handlebars.

Abstract: A brake lever assembly for a bicycle includes a pull lever having a pivot hole defined in one end thereof. The pull lever has a pivot bearing received in the pivot hole. A hollow holder is movably connected to the pull lever. The hollow holder has a retaining slot defined therein for retaining the end of the pull lever. The hollow holder has two guiding gutters defined therein for receiving the pivot bearing. A brake seat is connected to the hollow holder and mounted on a handlebar of a bicycle. A hydraulic mechanism is mounted between the pull lever and the brake seat. When the pull lever is pivotally rotated relative to the hollow holder, the pivot bearing simultaneously slides along the two guiding gutters, and the hydraulic mechanism is simultaneously actuated by a movement of the pull lever.

Abstract: A handle device comprises a handle unit having a holding end at one end thereof; another end of the handle unit being an adjusting end; a center of the adjusting end having a penetrating hole; a frame having a pivotal seat; a pivotal groove being formed in the pivotal seat; a center of the pivotal groove being formed with a through hole; a twisting unit being assembled in the pivotal groove; a supporting block being installed between the adjusting end of the handle unit and the pivotal seat of the frame; the supporting block being a disk like structure. In assembly, the twisting unit is installed in the pivotal seat; the supporting block is installed upon the twisting unit. The supporting block is pivotally rotatable by the twisting rotation of the twisting unit; and the supporting block is engaged to the adjusting end.

Abstract: A bicycle seat frame includes a front unit, a middle unit and a rear unit, each unit includes two pads located on two sides of the seat frame and multiple connection members are respectively connected between the pads of the front unit, the middle unit and the rear unit on the two sides of the bicycle seat frame. Gaps are defined between the front unit, the middle unit and the rear unit. Two rods are connected between the front unit and the rear unit and connected to the seat post. The connection members are flexible so as to absorb the shocks.

Abstract: A brake handle having a supporting frame, a handle and a push unit; wherein: the supporting frame has a receiving space; a piston is installed in the receiving space; the handle has a first sliding groove; the push unit has a second sliding groove; the second sliding groove is installed with an adjusting unit; the handle and push unit are pivoted to the supporting frame; the handle and push unit are pivoted to the supporting frame; the push unit resists against the piston; the adjusting unit passes through the first sliding groove and second sliding groove so as to pivotally install the handle and the push unit; and a screw rod is screwed to the adjusting unit. The screwing operation of the screw rod with respect to the adjusting unit will adjust an elevation of the handle.

Abstract: A brake handle having a supporting frame, a handle and a push unit; wherein: the supporting frame has a receiving space; a piston is installed in the receiving space; the handle has a first sliding groove; the push unit has a second sliding groove; the second sliding groove is installed with an adjusting unit; the handle and push unit are pivoted to the supporting frame; the handle and push unit are pivoted to the supporting frame; the push unit resists against the piston; the adjusting unit passes through the first sliding groove and second sliding groove so as to pivotally install the handle and the push unit; and a screw rod is screwed to the adjusting unit. The screwing operation of the screw rod with respect to the adjusting unit will adjust an elevation of the handle.

Abstract: An oil pressure braking pump, comprises a supporting frame having a receiving space; a piston and an adjusting unit being received in the receiving space; a handle being installed to the supporting frame; the handle serving to actuate a piston within the supporting frame; the piston being driven by the handle; an adjusting unit having a plurality of elastic units which has different elastic coefficients so as to push a pneumatic pressure device with different stages. The handle can push the piston; and then the piston pushes the adjusting unit to further drive the pneumatic pressure device with different stages.

Abstract: A handle device comprises a handle unit having a holding end at one end thereof; another end of the handle unit being an adjusting end; a center of the adjusting end having a penetrating hole; a frame having a pivotal seat; a pivotal groove being formed in the pivotal seat; a center of the pivotal groove being formed with a through hole; a twisting unit being assembled in the pivotal groove; a supporting block being installed between the adjusting end of the handle unit and the pivotal seat of the frame; the supporting block being a disk like structure. In assembly, the twisting unit is installed in the pivotal seat; the supporting block is installed upon the twisting unit. The supporting block is pivotally rotatable by the twisting rotation of the twisting unit; and the supporting block is engaged to the adjusting end.

Abstract: A brake clamping assembly, comprises a cylinder body; an outer side of the cylinder body having an outer hole; the cylinder body having a hollow receiving space; and the receiving space having a claw; the claw is elastic; an inner brake pad being installed inside of the claw and the outer brake pad being installed at an outer side of the claw; each of the inner brake pad and outer brake pad having a braking block which is positioned to the claw; an inner side of the inner brake pad is installed with an inner piston assembly; the outer brake pad being installed with an outer piston assembly. A retaining pin passing through the cylinder body, the outer brake pad, the claw and the inner brake pad; and a clip serves to fix the retaining pin; furthermore.

Abstract: A bicycle braking sheet assembly comprises a braking sheet being made of elastic material; the braking sheet being formed with a plurality of receiving holes; a plurality of braking blocks; the number of the braking blocks being equal to that of the receiving holes; the elastic coefficient of the braking blocks being different from that of the braking sheet; an outer shape of each braking block being corresponding to an inner shape of the receiving hole so that the braking block is exactly received in the receiving hole. An inner side of the braking sheet has a dirt remover. A projection extends from the dirt remover. An inner surface of the braking sheet is formed with a plurality of recesses and a plurality of first textures for increasing friction force. An inner surface of each braking block has a second texture.