ENGINE SUPPORT STRUCTURE OF MOTOR CYCLE

摘要

PROBLEM TO BE SOLVED: To provide an engine support structure of a motor cycle which achieves weight reduction and simplification of a main frame.SOLUTION: A first main frame part 62 extends from a head pipe 4 to the rear side, a second main frame part 64 swingably supports a swing arm 12, and an engine case EC is disposed between the head pipe 4 and the swing arm 12. The engine case EC includes: a crank case part 28; a cylinder part 30; a cylinder head part 32; and a transmission case part 34. The first main frame part 62 includes: a first mount part 56 which is connected with a front portion of the cylinder part 30; and a second mount part 58 which is connected with a rear portion of the cylinder head part 32. The second main frame part 64 has a third mount part 60 connected with a rear portion of the transmission case 34.