Vehicle body frame structure of straddle-type vehicle

A vehicle body frame structure of a straddle vehicle, the vehicle body frame structure comprising:

• a main frame;
• and
• a rear frame connected to the main frame by a fastener member and extending rearward from the main frame,
• wherein the main frame includes a first member and a second member which are connected to each other,
• the main frame includes a first connection portion and a second connection portion which are connected to the rear frame,
• the first connection portion is provided at the first member,
• the second connection portion is provided at the second member, and
• the first connection portion and the second connection portion are spaced apart from each other in a direction which is perpendicular to a vehicle width direction of the straddle vehicle,
• wherein the rear frame includes a first connected portion connected in a first restricting direction to the first connection portion by a first fastener member, and a second connected portion connected in a second restricting direction to the second connection portion by a second fastener member,
• wherein the first restricting direction is orthogonal to the second restricting direction,
• wherein the straddle vehicle further comprises a support member connected to the main frame by one of the first and second fastener members,
• wherein one of the first connected portion and the second connected portion is connected to a corresponding one of the first connection portion and the second connection portion, by one of the first and second fastener members, together with the support member, and
• wherein the first connection portion is permitted to be displaceable within a specified range in a direction different from the first restricting direction, and the second connection portion is permitted to be displaceable within a specified range in a direction different from the second restricting direction.

A vehicle body frame structure of a straddle vehicle, the vehicle body frame structure comprising:

• a first frame;
• and
• a second frame connected to the first frame by a fastener member,
• wherein the first frame includes a first member and a second member which are connected to each other,
• the first frame includes a first connection portion and a second connection portion which are connected to the second frame,
• the first connection portion is provided at the first member,
• the second connection portion is provided at the second member, and
• the first connection portion and the second connection portion are spaced apart from each other in a direction which is perpendicular to a vehicle width direction of the straddle vehicle,
• wherein the second frame includes a first connected portion connected in a first restricting direction to the first connection portion by a first fastener member, and a second connected portion connected in a second restricting direction to the second connection portion by a second fastener member,
• wherein the first restricting direction is orthogonal to the second restricting direction, and
• wherein the first connection portion and the second connection portion are detachably connected to the first connected portion and the second connected portion, respectively,
• the first connection portion is permitted to be displaceable within a specified range in a direction which is different from the first restricting direction,
• the second connection portion is permitted to be displaceable within a specified range in a direction which is different from the second restricting direction, and
• the first connected portion and the second connected portion are integrally formed by molding.