Dyna Low Rider S Dark Custom

2018 Harley-Davidson Dyna Low Rider S Dark Custom Technical Analysis & Specification Breakdown

Positioned in Harley-Davidson's custom - cruiser motorcycle lineup, the 2018 Harley-Davidson Dyna Low Rider S Dark Custom pairs a 1801 cc (109.9 cu in) air-cooled v2, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 97 HP (70.8 kW) at 5,250 rpm while maximum torque reaches 156 Nm (115.1 lb-ft) at 3,500 rpm, transferring power to the rear wheel through a 6-speed gearbox and belt final drive. With a specific output of 53.9 HP per liter and a 1,750 rpm working window between peak torque (3,500 rpm) and peak power (5,250 rpm), the engine character is prioritizing low-RPM tractability, mechanical longevity and relaxed throttle response over peak redline numbers.

On the scales, the Dyna Low Rider S Dark Custom measures 305 kg (672 lbs) wet (curb), translating to a power-to-weight ratio of 0.32 HP/kg (3.14 kg per horsepower). Rider ergonomics and chassis geometry center around a 685 mm (27 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1,630 mm (64.2 in) wheelbase engineered for planted straight-line stability. The 18.9-liter (5 US gal) fuel tank paired with a rated consumption of 5.1 L/100 km provides an estimated theoretical range of roughly 371 km (231 miles) between fill-ups.