While Royal Enfield is a well-known manufacturer of long-stroke engines, there are several other companies that produce motorcycles or engines with long-stroke configurations. Here are a few examples:
Harley-Davidson: Harley-Davidson is a renowned American motorcycle manufacturer that produces motorcycles with long-stroke engines, particularly in their Big Twin lineup.
Triumph Motorcycles: Triumph is a British motorcycle manufacturer known for its classic and modern motorcycles. Some of their models feature long-stroke engines.
Moto Guzzi: Moto Guzzi is an Italian motorcycle manufacturer that has a long history of producing motorcycles with long-stroke engines. Their iconic V7 and V9 models are known for their long-stroke V-twin engines.
Ural Motorcycles: Ural is a Russian motorcycle manufacturer famous for its sidecar motorcycles. Ural bikes often use long-stroke engines for their rugged off-road capabilities.
Indian Motorcycle: Indian Motorcycle is an American motorcycle manufacturer that offers models with long-stroke engines, particularly in their heavyweight cruisers.
It's important to note that the term "long-stroke" refers to an engine design with a longer piston stroke compared to its bore diameter. While these manufacturers have models with long-stroke engines, they also produce motorcycles with different engine configurations as well.