Harley Davidson FLHX Street Glide 2025 Service Manual

Harley gave the Street Glide a substantial platform overhaul in 2024 — engine, suspension, styling, and infotainment all got reworked — which meant 2025 could simply carry that formula forward unchanged. Motorcyclist's own preview summed it up plainly: after "nearly two decades on the open road," the current generation had already redefined what a Street Glide should be, so there was nothing left to fix.

Power comes from the Milwaukee-Eight 117, a liquid-cooled 4.075 in. bore, 4.5 in. stroke V-twin delivering a claimed 126 lb-ft of torque, kept cool via liquid-cooled cylinder heads and a discreet center-mounted radiator that manages heat even in stop-and-go traffic. A high-flowing intake helps the big twin breathe, while hand-adjustable rear shocks let riders dial in the ride for solo or two-up loads without tools.

The iconic Batwing fairing carries integrated LED lighting shaped into its silhouette, aerodynamically optimized for rider comfort, paired with a one-piece seat designed to improve long-mile comfort while complementing the bike's overall line. Three ride modes (Road, Sport, Rain, plus a customizable option) let riders change the bike's character on the fly, and a 200-watt four-channel amplifier feeding fairing-mounted speakers delivers genuinely capable audio for highway riding. Nine paint options were available for 2025, including three Factory Custom schemes: Whiskey Firestorm and Midnight Firestorm hot-rod flame graphics, and a color-shifting Mystic Shift finish that transitions from gunmetal to purple to blue to orange depending on light angle. Dimensions run 94.9-102 in. long depending on trim measurement, with a 6-gallon tank, 26-degree rake, and pricing starting at $27,749.