These Well-Known Harley-Davidson Motorcycles Feature Liquid-Cooling Technology.

Harley-Davidson offers a diverse range of bikes, including several models equipped with liquid-cooled engines. Leading the pack is the Revolution 1250T engine, replacing the revered Evolution Twin and currently powering the Sportster S motorcycles. According to experts, it's a standout feature of these bikes.

For those seeking other options, Harley-Davidson's CVO Street Glide and CVO Road Glide boast the powerful liquid-cooled Milwaukee-Eight VVT 121 engine, among the largest in their lineup. The Milwaukee-Eight 117 engine is another choice available in the base Street Glide and Road Glide models. The Ultra Limited rounds out the selection with its twin-cooled Milwaukee-Eight 114 motor, blending air and liquid cooling technologies.

When comparing liquid-cooled versus air-cooled engines, the main distinction lies in their cooling methods: liquid-cooled engines utilize a liquid coolant for temperature regulation, whereas air-cooled engines rely on airflow. While liquid-cooled engines offer more consistent temperature control and potentially greater comfort due to lower heat emissions, they also involve additional components such as water pumps and radiators, which may require more maintenance. Air-cooled engines, on the other hand, are favored for their simplicity and reduced maintenance needs.