The complete line of AMSOIL motorcycle products ensures your bike is ready to hit the road. Bikers of all stripes are gearing up for another season of motorcycle rallies and summer road trips. Whether you’re into V-twins or metric bikes, AMSOIL synthetic motorcycle oils are dialed-in to meet the unique demands of your bike. V-Twin Motorcycles Powerful, hot-running V-twins generate intense heat, especially in slow-moving rally or parade traffic. Air-cooled bikes rely on a steady flow of air over the cooling fins to conduct heat away. Stop-and-go driving and periods of idling on hot summer days can quickly cause the engine temperature to skyrocket. If a motorcycle oil cannot withstand hot operating temperatures, its ability to provide adequate engine protection is compromised. In addition, the intense heat and mechanical action inside a motorcycle engine can cause motorcycle oils to lose viscosity, or shear. Bikes that share a sump between the e...