open primary harley

An open primary on a Harley refers to a type of motorcycle transmission system that allows the engine's power to be transmitted directly to the rear wheel through a clutch and a primary drive. In an open primary system, the primary drive is exposed to the outside, and the clutch is not enclosed in a primary case as it would be in a traditional enclosed primary system.

The advantage of an open primary system is that it can provide a more direct transfer of power from the engine to the rear wheel, which can result in improved performance and responsiveness. Additionally, an open primary system can offer an aesthetic appeal, as the exposed primary drive can give a motorcycle a unique and customized look.

However, there are also some potential drawbacks to an open primary system. Because the clutch is exposed, it can be more vulnerable to damage from debris or other hazards on the road. Additionally, an open primary system can be more difficult to maintain and repair, as the components are more exposed and may require more frequent maintenance.

Overall, the decision to use an open primary on a Harley will depend on the rider's individual preferences and priorities in terms of performance, aesthetics, and maintenance considerations.