| Component | Specification |
|---|---|
| Engine | Milwaukee-Eight 117 (1,923cc) |
| Engine Oil | SAE 20W50 (3.8 Liters) |
| Spark Plugs | HD-6R10 |
| Battery | 66000207 |
| Front Tire | 110/90B19 62H (36 psi / 2.48 bar) |
| Rear Tire | 180/70B16 77H (42 psi / 2.90 bar) |
The 2022 Harley-Davidson Low Rider S (FXLRS) represents a significant engineering milestone for the Softail platform: it is the first non-CVO (Custom Vehicle Operations) model to feature the high-performance Milwaukee-Eight 117 V-Twin as standard equipment. This transition from the 114 to the 117 CUI power plant provides a factory-stock torque output of 125 ft-lb, utilizing a Heavy Breather intake and high-performance camshaft that were previously exclusive performance upgrades.
Engineering & Performance Analysis
The FXLRS/22 utilizes the stiffened Softail chassis, paired with a 43mm inverted front fork and a longer rear monoshock than its predecessors. This increased rear travel provides better lean angle clearance (31.3 degrees), addressing a common critique of earlier Low Rider iterations. The Heavy Breather intake is not merely aesthetic; it is forward-facing to maximize air induction under high-load scenarios, necessitating precise fuel mapping for the 117’s larger displacement.
Maintenance & Lubrication
For the Milwaukee-Eight 117, thermal management is critical. MotoSpecsLab recommends SAE 20W50 synthetic oil. The total system capacity is 3.8 liters. Given the high-compression nature of the 117 engine, oil viscosity stability is paramount to prevent hydraulic lifter noise and ensure proper cooling of the cylinder heads. We suggest inspecting the oil level every 1,000 miles, particularly during the break-in period.
Chassis & Contact Patch
The handling characteristics of the Low Rider S are heavily dependent on tire pressure. The 19-inch front wheel requires 36 psi (2.48 bar) to maintain steering precision, while the 16-inch rear requires 42 psi (2.90 bar) to handle the massive torque output without premature carcass deformation. The factory-specified Michelin Scorcher “31” tires (F: 110/90B19 / R: 180/70B16) are designed specifically for this weight-to-torque ratio.
Electrical System
The FXLRS/22 utilizes the 66000207 battery. Due to the high-torque starter required to turn over the 1,923cc displacement, maintaining a full charge is vital. For ignition, the HD-6R10 spark plugs should be gapped according to factory service manual specifications to ensure complete combustion and prevent fouling in the high-output 117 chambers.
Frequently Asked Questions
Q: How often should I change the spark plugs?
A: MotoSpecsLab recommends inspection every 5,000 miles and replacement every 30,000 miles, or sooner if performance degradation is noted.
Q: Can I use 10W40 oil?
A: While 10W40 can be used in colder climates, the 117 CUI engine is air/oil-cooled and generates significant heat; SAE 20W50 is the preferred standard for optimal protection.