초록 ▼

A two-wheeled vehicle having a front end portion of a rear suspension attached to an upper part of a body frame. A reduction in weight and cost of the body frame is attained while permitting a fuel tank and a seat to be set at respective optimum heights without changing their shapes and sizes. In th

A two-wheeled vehicle having a front end portion of a rear suspension attached to an upper part of a body frame. A reduction in weight and cost of the body frame is attained while permitting a fuel tank and a seat to be set at respective optimum heights without changing their shapes and sizes. In the body frame, a pair of right and left main frames are extended backwards and downwards from a head pipe, expanded portions are formed locally upward from straight portions of the main frames as seen from the side, and a cross member is mounted between the expanded portions. A front end portion of a rear suspension is attached to a vertical center of a rear side of the cross member and the rear suspension is extended substantially in parallel with the straight portions.

대표청구항 ▼

[ What is claimed is:] [1.]1. A body frame structure for a two-wheeled vehicle having a front and a rear, the structure comprising:a head pipe;a right main frame extending rearward from the head pipe, having a front and a rear portion;a left main frame extending rearward from the head pipe, having a

[ What is claimed is:] [1.]1. A body frame structure for a two-wheeled vehicle having a front and a rear, the structure comprising:a head pipe;a right main frame extending rearward from the head pipe, having a front and a rear portion;a left main frame extending rearward from the head pipe, having a front and a rear portion;a cross member fixed between the right and left main frames;a rear suspension mounted to the cross member and having a longitudinal axis, wherein an extension of the longitudinal axis of the rear suspension intersects with the cross member; andexpanded portions on upper portions of the right and the left main frames, the cross member being mounted between the expanded portions of the main frames.