Rear suspension for off-road vehicle

An off-road vehicle comprising:

• a vehicle frame of piping;
• a power unit including an engine, a transmission, an intake and exhaust device, a fuel tank, and a battery;
• at least one rear wheel;
• and
• a suspension supporting said rear wheel on said vehicle frame, said suspension comprising:
• a knuckle by which said rear wheel is rotatable supported, said knuckle having a proximal end and an upward extension;
• said vehicle frame having a side frame member positioned laterally of said power unit and a rear frame member positioned rearwardly of said power unit;
• a lower arm assembly coupled between said proximal end of said knuckle and said side frame member of said vehicle frame;
• and
• an upper arm having a vertex end and two front and rear legs extending forwardly and rearwardly from said vertex end, said vertex end being pivotally coupled to said upward extension of said knuckle, said front leg being pivotally coupled to said side frame member, and said rear leg being pivotally coupled to said rear frame member.