Harley-Davidson Softail Slim Motorcycle - Street (2018-2020)

The Harley-Davidson Softail Slim, from model years 2018 to 2020, is an iconic cruiser motorcycle known for its minimalist style and powerful engine. It featured the Milwaukee-Eight 107 engine, displacing 1745 cc (107 cubic inches), consistently delivering 145 Nm (110 ft-lbs) of torque at 3000 rpm and approximately 86 to 87 horsepower. During this period, the Softail Slim was offered as a single trim, with variations primarily focused on color options. The year 2018 marked a major overhaul for the Softail line, including the Slim. It introduced the new Milwaukee-Eight 107 engine, replacing the Twin Cam 103, and a redesigned Softail frame, which was 65% stiffer and 35 pounds lighter. The suspension was also significantly upgraded with a Showa Dual Bending Valve fork at the front and a single under-seat coil-over shock at the rear, improving handling and comfort. The 2019 and 2020 models largely carried over these significant updates with no major generational or engine changes. Q: How do I ensure part compatibility for my Softail Slim?

A: To guarantee compatibility, please use the year and edition selector available on this page.

Maintenance