Abstract: A saddle type two-wheeled vehicle includes: a frame extending along a vehicle longitudinal axis; a swing arm journaled to the frame and adapted to support a rear wheel; and a drive system including one or more drive sources configured to deliver a driving force to the rear wheel. The one or more drive sources include a first drive source and a second drive source, the first drive source comprises at least one mounting portion integrally formed to at least a portion of the first drive source, at least one mounting portion is configured for removably mounting the first drive source on at least a portion of the swing arm, and the second drive source is detachably mounted on the rear wheel.

Abstract: An energy storage device includes a plurality of energy storage cells and at least one holder structure adapted to store one or more energy storage cells of the plurality of energy storage cells. The at least one holder structure includes at least one non-rigid member overmolded to at least one rigid frame member such that the at least one non-rigid member includes one or more receiving portions dimensioned to receive at least a portion of the one or more energy storage cells therein.

Abstract: An energy storage device includes one or more energy storage cells and at least one holder structure adapted to store at least one energy storage cell of said one or more energy storage cells. Said at least one holder structure includes a composition containing, in weight percent, of a predetermined amount of at least one thermosettable material and an effective amount of at least one curing agent and a predetermined amount of a phase change material. A method of manufacturing said at least holder structure provides high conductivity, high heat absorbing and dissipating capability, improved cooling mechanism, high thermal conductivity and characteristics resulting in minimal risk of electric short circuit between the one or more energy storage cells.

Abstract: An opposed piston internal combustion engine can include two opposed pistons (104, 110) moving reciprocally along respective axes of translation (202, 204) that are not collinear. First and second cylinder bores (502, 504) can be inclined to each other at an included angle (a). A combustion volume or chamber (114) can optionally be defined at least in part by crowns (102, 106) of the first and second pistons (104, 110) reciprocating in the first and second cylinder bores (502, 504), respectively. Related methods, systems, and articles of manufacture are described.