Notches of frame rails of three-wheeled vehicle

A vehicle comprising:

• a vehicle frame including a first frame rail, a second frame rail spaced cross-vehicle from the first frame rail, and a middle frame rail between the first frame rail and the second frame rail, the middle frame rail being on a longitudinal axis of the vehicle frame that is spaced equidistantly from the first frame rail and the second frame rail;
• the first frame rail and the second frame rail each having a vehicle-inboard side facing toward the middle frame rail, the vehicle-inboard sides each defining a plurality of notches;
• the middle frame rail having a downward side facing downwardly in a plane perpendicular to the vehicle-inboard sides, the downward side defining a plurality of notches;
• the vehicle frame having a rear cross-member and a front cross-member spaced vehicle-forward of the rear cross-member, the rear cross-member and the front cross-member are between the first frame rail and the second frame rail;
• and
• the notches of the vehicle-inboard sides and the notches of the downward side are between the rear cross-member and the front cross-member;
• and
• a front wheel vehicle-forward of the vehicle frame, the front wheel being on the longitudinal axis of the vehicle frame.