Abstract: A bike includes a frame elongated in a longitudinal direction, a front fork rotatably engaged with a front wheel at a front end of the bike, a rear fork rotatably engaged with a rear wheel at a rear end of the bike, a handlebar supported for rotation at the front end of the frame for steering the bike, and a drive module configured to drive the rear wheel of the bike when operated selectively with power. The frame includes a down tube extending downward and rearward from the front end of the bike and a drive module enclosure formed at a second end of the down tube. The drive module enclosure defines a drive module receptacle that is open along the longitudinal direction of the bike. The drive module receptacle is sized to receive the drive module along the longitudinal direction of the bike.

Abstract: A running bike that can be operated selectively with and without power. The running bike includes a front fork rotatably engaged with a front wheel, a rear fork rotatably engaged with a rear wheel, the rear fork having an upper portion and a lower portion, and a handlebar rotatably engaged with the front fork for steering the running bike. A frame extends between and connects the front fork and the rear fork. The frame includes a down tube having a first end connected to the front fork and a second end opposite the first end and positioned adjacent the rear fork, a top tube connected to and extending between the down tube and the upper portion of the rear fork, and a drivetrain receiving region defined as an area rearward of the down tube, forward of the rear wheel, and below the top tube.

Abstract: A bike includes a frame elongated in a longitudinal direction, a front fork rotatably engaged with a front wheel at a front end of the bike, a rear fork rotatably engaged with a rear wheel at a rear end of the bike, a handlebar supported for rotation at the front end of the frame for steering the bike, and a drive module configured to drive the rear wheel of the bike when operated selectively with power. The frame includes a down tube extending downward and rearward from the front end of the bike and a drive module enclosure formed at a second end of the down tube. The drive module enclosure defines a drive module receptacle that is open along the longitudinal direction of the bike. The drive module receptacle is sized to receive the drive module along the longitudinal direction of the bike.