Patent ID: 8177013

Claim:
A motorcycle rear-wheels transmission and suspension system for a motorcycle comprising a construction frame to mount and support an engine, one front wheel and two rear wheels, comprising: a suspension device which comprises a supporting frame, adapted for longitudinally extending along a central axis of said construction frame and pivotally connecting with a seat portion of said construction frame of said motorcycle; a suspension unit provided between said supporting frame and said construction frame for absorbing shock; and an axle supporter transversely provided at a rear end of said supporting frame, wherein a transmission cavity is defined after a rear end of said supporting frame and at a central position behind an output of said engine along said central axis of said construction frame; a rear axle rotatably and transversely supported by said axle supporter for connecting with said two rear wheels at two outer ends thereof; and a transmission device supported by said rear axle in said transmission cavity of said suspension device to transmit a rotation output from said engine to drive said rear axle to rotate for driving said rear wheels to rotate.