Harley-Davidson 1870 Street Glide Special FLHXS 2021 — Specifications

Who would have thought that a 375 kg bagger could one day come equipped with traction control, cornering ABS, and lean-angle-sensitive linked braking? The Harley-Davidson Street Glide Special FLHXS model year 2021 proves that Milwaukee has definitively turned the page on technological conservatism. Beneath the Batwing fairing, behind the 19 and 18-inch Prodigy wheels, lies a motorcycle that wants to play in the big leagues of modern touring bikes. The RDRS electronic rider aids package brings together everything a sensible rider could hope for to tame a machine of this size: two-level traction control, hill start assist, tire pressure monitoring. On paper, it's nearly as comprehensive as a BMW R 1250 RT. Nearly.

The heart of this machine is its Milwaukee Eight V-twin displacing 1868 cc. Four valves per cylinder, a 102 mm bore with a 114 mm stroke, and a 10.5:1 compression ratio. The result? 89 horsepower at 5020 rpm and, more importantly, 157.9 Nm of torque from just 3250 rpm. We're not talking about raw performance capable of rivaling a Gold Wing or a K 1600 GT. We're talking about a unique engine character, a deep and steady surge that pins you into the saddle with every twist of the throttle. The balancer shaft has smoothed out parasitic vibrations at idle without neutering the twin's personality. The six-speed gearbox delivers its shifts through a belt drive, a reliable and quiet solution that Harley has mastered for decades.

For 2021, the updates remain cosmetic but well considered. The headlight adopts Daymaker LED technology, the crash bars are lowered to refine the silhouette, and the 22.7-liter tank receives a new Bar & Shield medallion with a side-mounted filler cap. The center console has been redesigned. The "Special" suffix translates visually into a full blackout treatment: fork tubes, handlebar, mirrors, turn signals, engine covers, exhaust heat shields. Everything that gleamed on the standard Street Glide has been swallowed by a dark finish that gives the whole package a striking visual coherence. The saddlebags, pulled downward, come to cover the ends of the mufflers for a low-slung, aggressive profile.

On the chassis side, the steel double-cradle frame houses a 49 mm telescopic fork with SDBV technology and two Showa emulsion rear shocks replacing the former air suspension. Travel remains limited — 117 mm up front and 54.6 mm at the rear — but long-haul comfort proves sufficient for the machine's touring mission. Braking relies on 300 mm discs at both wheels, clamped by four-piston calipers, with front-rear linking. The seat, perched at just 690 mm, reassures shorter riders despite the considerable weight of the beast. The 6.5-inch touchscreen of the Boom Box GTS system offers GPS, Bluetooth, voice recognition, and Apple CarPlay compatibility. H-D Connect allows remote motorcycle monitoring from a smartphone.

At 29,190 euros, the Street Glide Special sits at the top of the premium bagger segment. It targets a well-defined audience: the touring rider devoted to American culture, the one who prefers the presence of a big twin over the sanitized purr of a flat-six or a Bavarian inline-six. Against an Indian Chieftain Dark Horse, it now offers a comparable technological arsenal and a brand image that remains magnetic. Its main shortcoming is still its weight, which makes it unwieldy in urban maneuvers and limits top speed to 160 km/h. But nobody buys a Street Glide to attack mountain passes. You buy one to devour miles of straight asphalt, the stereo in your ears and the torque in the small of your back.