1936 BMW R3

Classic

Air cooled, 305cc, Single, OHV

1976 Yamaha XS 500

Air cooled, 499cc, 2, DOHC

2007 Harley-Davidson XR 1200 Concept

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

2003 Triumph Thunderbird

All-rounder

Water cooled, 885cc, Inline-3, DOHC