Because of Cuba's communist relationship with the former Soviet republic you see lots of Urals (captured east german BMW technology from the 40's) and Jawa ,CZ , Lietner and the odd Dnepr (ukraine- connection to Ural). Some Sachs running around as France was a trading partner.
Around Havana you can find a collection of Harley riders, nothing newer than mid fifties. They have a biker subculture thats pretty interesting.
There are a few late model Chinese 2 strokes running around based on 70's yamaha 350's
Its really a trip if your into motor technology, you get a 2yr old Peuguot sedan parked beside an International 2 ton truck taking a family to church. Horses compete on the expressway with Mercedes buses.