There are several motorcycles that use a V4 engine configuration. Some notable examples include:
Honda VFR series: The Honda VFR series, including models like the VFR750 and VFR800, feature V4 engines known for their smooth power delivery and high-revving performance.
Aprilia RSV4: The Aprilia RSV4 is a sportbike that utilizes a V4 engine. It has gained recognition for its impressive power output and advanced electronics.
Ducati Desmosedici RR: The Ducati Desmosedici RR is a limited-production, road-legal version of the MotoGP Desmosedici race bike. It features a V4 engine and is highly regarded for its exceptional performance.
Yamaha VMAX: The Yamaha VMAX is a power cruiser that utilizes a V4 engine, known for its muscular torque and distinctive styling.
Moto Guzzi Griso 8V: The Moto Guzzi Griso 8V is a unique naked bike that employs a V4 engine configuration. It offers a combination of Italian styling and a distinctive engine layout.
These are just a few examples of motorcycles that use a V4 engine. Various other manufacturers and models have also employed this engine configuration in the past or continue to do so. It's worth noting that availability may vary depending on the region and model years.