[[Image:1966-Harley-Davidson-M50-Sport-Red-6546-0.jpg|left|thumb|1966 Harley-Davidson M50 Sport in Red]][[Image:1966-Harley-Davidson-M50-Sport-Red-6546-1.jpg|left|thumb|1966 Harley-Davidson M50 Sport in Red]][[Image:1966-Harley-Davidson-M50-Sport-Red-6546-2.jpg|left|thumb|1966 Harley-Davidson M50 Sport in Red]]