STRUTTURA DI TELAIO PER UNO SCOOTER

PROBLEM TO BE SOLVED: To improve the supporting rigidity of a seat, etc., by a rear frame, and to miniaturize a vehicle body by integrating a rear end part of a main pipe with a cross pipe extending in the right-to-left direction of the vehicle body, and connecting a forward end part of a pair of right and left rear frames to right and tell end parts of the cross pipe. SOLUTION: Forward parts of right and left rear frames 41 , 42 are supported by a rear end part 3a of a main pipe 3 through a lower cross pipe 10 made of steel pipe orthogonal to the pipe 3. Because the mutual clearance between the right and left rear frames 41, 42 at the supporting part can be secured to be relatively long, the supporting rigidity to seats S of the right and left rear frames 41 , 42 , a rear outer plate Pr, a rear cushion 9, etc., can be effectively increased. By increasing the mutual clearance of the forward parts of the right and left rear frames 41 , 42 , a power unit 2 can be brought as closet as possible to a forward side as a whole while avoiding the interference with the rear frames 41, 42.