To obtain a storing space between a sheet and a frame.

In a scooter type motorcycle/motor-tricycle in which a sheet 13 is arranged above a rear frame 4, a rear frame 4 is extended in the rear direction of a vehicle body from a rear end of the sheet 13 and the rear part of the frame 4 is erected upward to thereby form a storing space between the rear end of the sheet 13 and the erected part 4a of the rear frame 4, a carrier 20 having a carrier part 20a extending in the rear of vehicle body is mounted on an upper part of the erected part 4a, a blind part 20b extending in the front of vehicle body is formed to cover an upper part of the space, and a rear part of the sheet 13 is supported with the blind part 20b of the carrier 20.