Abstract: A bicycle frame has a front frame, a mounting bracket assembly, a rear frame and a shock absorbing device. The front frame has a head tube, a down tube, a top tube, a bottom bracket shell and a seat tube. The seat tube is connected to bottom bracket shell, is connected to the rear end of the top tube and has an upper bracket seat, a connecting bracket and a lower bracket seat. The mounting bracket assembly is connected pivotally to the front frame and has two front mounting brackets and a rear mounting bracket. The rear frame is connected pivotally to the mounting bracket assembly and the front frame and has an upper fork, a lower fork and two dropouts. The shock absorbing device is connected to the front frame, the rear frame and the mounting bracket assembly and has a first shock absorber and a second shock absorber.

Abstract: A bicycle frame has a front frame, a mounting bracket assembly, a rear frame and a shock absorbing device. The front frame has a head tube, a down tube, a top tube, a bottom bracket shell and a seat tube. The seat tube is connected to bottom bracket shell, is connected to the rear end of the top tube and has an upper bracket seat, a connecting bracket and a lower bracket seat. The mounting bracket assembly is connected pivotally to the front frame and has two front mounting brackets and a rear mounting bracket. The rear frame is connected pivotally to the mounting bracket assembly and the front frame and has an upper fork, a lower fork and two dropouts. The shock absorbing device is connected to the front frame, the rear frame and the mounting bracket assembly and has a first shock absorber and a second shock absorber.

Abstract: A bicycle frame has a front frame, a mounting assembly, a rear frame and a shock absorber. The front frame has a head tube, a down tube, a top tube, a bottom bracket shell and a seat tube. The seat tube is connected to bottom bracket shell, is connected to the rear end of the top tube and has an upper bracket seat, a connecting bracket and a lower bracket seat. The mounting assembly is connected pivotally to the front frame and has two mounting brackets. The rear frame is connected pivotally to the mounting assembly and front frame and has an upper fork, a lower fork and two dropouts. The shock absorber is connected to the front frame and the mounting assembly.

Abstract: A bicycle frame has a front frame, a rear frame and a shock absorber. The front frame has a head tube, a down tube, a top tube, a bottom bracket shell and a seat tube. The seat tube is connected to and protrudes up from the bottom bracket shell, is connected to the top tube and has a jacket and a threaded hole. The jacket is connected to the shock absorber and has an opening and a chamber. The rear frame is connected pivotally to the front frame and has a lower fork, two dropouts and an upper fork. The upper fork is connected to the dropouts and the shock absorber and has two bottom ends, a top end and two fasteners. The shock absorber is mounted between the seat tube and the upper fork and has a sleeve, an elastomer, a connecting pipe and a shaft.