1937 BMW R17

Classic

Air cooled, 736cc, Boxer, OHV

2007 Harley-Davidson XR 1200 Concept

Oil/air cooled, 1200cc, 45° V-twin, OHV

1964 Ducati Apollo v4

Classic

Air cooled, 1200cc, 90° V4

1928 BMW R42

Classic

Air cooled, 494cc, Boxer, OHV