Harley-Davidson CVO STREET GLIDE (114 CUI) – FLHXSE/17 Service Guide: Oil Level & Tire Specs

The 2017 Harley-Davidson CVO Street Glide (FLHXSE) holds a unique position in motorcycling history as the first Custom Vehicle Operations bagger to debut the Milwaukee-Eight 114 engine. This powertrain represented the most significant engineering overhaul to the Big Twin platform in eighteen years, introducing four-valve cylinder heads and a dual-cooling system that drastically improved thermal management and torque delivery.

Engineering Excellence: The Milwaukee-Eight 114

The FLHXSE/17 is centered around the 114 cubic inch (1868cc) iteration of the Milwaukee-Eight. Unlike the standard touring models of the same year which utilized the 107, the CVO’s 114 provides a substantial increase in passing power and throttle response. The engine utilizes a single camshaft design to reduce mechanical noise and features dual spark plugs per cylinder for more efficient combustion.

Maintenance & Fluid Specifications

For high-performance V-Twins of this caliber, fluid integrity is paramount. The 2017 CVO Street Glide requires 3.8 liters of SAE 20W50. MotoSpecsLab highly recommends using Screamin’ Eagle SYN3 Synthetic to ensure the longevity of the top-end components under high heat. Spark plugs (Part No: 60100010) must be gapped precisely between 0.76 and 0.89 mm to ensure consistent ignition timing.

Chassis and Handling

Handling this 800+ lb machine requires precision in the contact patch. The bike is equipped with a 19-inch front and 18-inch rear wheel setup. Maintaining the tire pressure at 36 psi (Front) and 42 psi (Rear) is critical not only for tread life but for the stability of the Reflex Linked Brembo brakes with ABS. The suspension features hand-adjustable rear pre-load, allowing riders to tune the ride for solo or two-up touring without tools.

Editor’s Verdict

The 2017 FLHXSE remains a benchmark for luxury touring. It successfully blended the raw soul of a Harley-Davidson with modern refinements like the Boom!™ Box 6.5GT Infotainment system and the smoother, cooler-running M8 engine. It is a masterclass in factory-custom engineering.