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๐Ÿ”ฅ Harley-Davidson Knucklehead (1936โ€“1947) โ€“ The bike that started a revolution and redefined American motorcycling forever. From the Great Depression to WWII, from outlaw culture to custom choppers, this legendary machine became the heart of a movement. In this long-form deep-dive, we explore the full history, technology, cultural impact, and legacy of the Knucklehead V-twin engine that still inspires Harley riders across the world.

๐Ÿ๏ธ Whether you're a Harley fan, a vintage bike collector, or just love American history, this is one story you can't miss.

๐Ÿ‘‰ Chapters:
0:00 โ€“ Introduction
2:30 โ€“ The 1930s: Harley Needs a Game-Changer
5:45 โ€“ The Knucklehead Engine: Innovation & Power
9:10 โ€“ Design & Identity: American Style on Two Wheels
12:00 โ€“ War Machines: Harley-Davidsonโ€™s Role in WWII
15:30 โ€“ Post-War Riders & the Rise of Rebellion
19:45 โ€“ The Custom Bike Revolution
22:00 โ€“ Rarity & Value Today
24:00 โ€“ Why the Knucklehead Still Rules

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Transcript
00:00Few names in motorcycle history evoke motion like Knucklehead.
00:07First unleashed in 1936, the original Harlow-Davidson EL with its iconic knuckle-shaped
00:13rocker boxes wasn't just a machine, it was a cultural shift. It ushered in a new era of
00:18overhead valve power, symbolized freedom, rebellion, and raw American ingenuity.
00:23Now, in 2025, the name returns, not as a museum piece or a tribute show bike, but as a fully
00:30modern cruiser that dares to carry the same fire. The 2025 Harlow-Davidson Knucklehead is
00:36a bold revival that pays homage to its roots while roaring headfirst into the future.
00:41Engine, classic inspiration, modern domination. At the heart of the 2025 Knucklehead is an all-new
00:481350 cubic centimeters neo-knuckle V-twin engine. This air and liquid-cooled motor doesn't just
00:56mimic the look of the 1936 version, it redefines it. With 105 horsepower and 125 newton meters of torque,
01:05the knucklehead isn't playing around. Harley engineers have kept the soul of the original.
01:11A strong low-end torque band that gives you that instant pull, that satisfying grunt when you roll
01:16on the throttle. But unlike the old air-cooled mills, this power plant is refined, responsive,
01:22and built to survive both city traffic and cross-country punishment. Throttle response is crisp,
01:28the fueling is flawless, and the exhaust note is tuned to give you a deep, throaty rumble that's
01:33unmistakably Harley, but with modern precision. Design, nostalgia with attitude. One glance,
01:40you know this bike's special. The 2025 Knucklehead is a head-turner. The tank shape is inspired by the
01:48classic teardrop design, with deep knee recesses and brushed aluminum accents. The engine heads keep
01:54that signature knuckle shape, no fakes here. Chrome is used tastefully, not excessively.
02:00Machined aluminum touches, blacked-out exhausts, and optional two-tone paint schemes give the bike a
02:06premium custom shop vibe. Deep-valanced fenders and spoke wheels on the heritage trim pull you right
02:12back into the post-war era. Lead lighting is seamlessly integrated. From the retro-style
02:18headlamp with halo DRLs to the slimline turn indicators, everything is clean, sharp, and
02:24unmistakably premium. Chassis and handling, classic looks, sharp control. Beneath the retro bodywork lies
02:32a thoroughly modern frame. The 2025 Knucklehead uses a soft L-style chassis with a hidden rear
02:38monoshock that preserves the rigid frame look but offers real-world ride comfort. Up front,
02:4449mm show a fork soak up the road while giving precise front-end feedback. Cornering? Way better
02:51than you'd expect. With a dry weight of around 670 pounds, the Knucklehead isn't feather-light,
02:57but Harley's done wonders with balance and center of gravity. In town, it's nimble. On the highway,
03:05it feels planted, even at triple-digit speeds. Braking is handled by dual 300mm discs up front
03:12with four-piston calipers and a single disc in the rear, all linked to ABS and traction control.
03:18Harley's advanced electronics help you stay in control, even when the road turns unpredictable.
03:23Rider ergonomics, for long rides and loud vibes. Hop on, and the riding position is a sweet spot
03:31between relaxed and commanding. Mid-mounted foot controls, wide bars, and a plush solo saddle
03:37create a perfect triangle for everyday comfort and long-haul endurance. The seat height sits at just
03:4327.1 inches, making it accessible for shorter riders while still giving taller ones room to stretch.
03:49For those craving versatility, optional touring seats and passenger kits are available.
03:55The bike feels custom-fit right out of the crate, and even better once you dial it in with accessories.
04:02Electronics, heritage outside, tech inside. The 2025 Knucklehead doesn't scream tech,
04:08but it's all under the hood. The analog style gauges are paired with a digital LCD insert that gives you
04:15real-time performance data, ride mode selection, Bluetooth pairing, and even turn-by-turn navigation
04:21via the Harley-Davidson app. Ride modes include. Touring, smooth power delivery for long cruises.
04:29Sport, sharper throttle, firmer suspension. Vintage, reduced electronics, more engine feel,
04:36more sole. Traction control, cornering ABS, cruise control, and keyless ignition are all standard.
04:43A tire pressure monitoring system and USB-C charging port round out the practical touches.
04:50Sound, that signature Harley rumble. Let's talk about the soul of the machine,
04:55the exhaust note. Harley tuned the two into two pipes with sound engineers and old-school riders alike.
05:02The result? A deep, rhythmic lope at idle, a growl under throttle, and a spine-tingling roar above
05:094,000 RPM. It doesn't just sound good, it feels good. The vibration is controlled,
05:16but present enough to remind you this is a big V-twin doing its job.
05:20For those who want more, Screamin' Eagle pipes and air kits are ready to install without voiding
05:26warranty. Customization, your bike, your legacy. The Knucklehead 2025 is born ready, but Harley knows
05:34you'll want to make it your own. That's why it ships with full compatibility with the HD parts and
05:40accessories catalog. You can go from solo bobber to cross-country bagger in hours.
05:46Want ape hangers? Done. White wall tires? Available.
05:53Chrome sissy bar with quilted passenger pad? Absolutely. It's a canvas, and Harley wants you
06:00to paint it your way. Trims and price breakdown. Harley offers three main trims. Standard trim,
06:08matte finishes, blacked-out pipes, mid-controls, $19,999. Heritage trim, chrome engine covers,
06:17spoked wheels, leather grips, $21,999. Custom trim, factory custom paint, bar-end mirrors,
06:26performance exhaust, $23,499. Limited launch editions will include serialized badging,
06:35vintage color options, and special first-run accessories for early adopters.
06:40Final verdict, a true revival, not a replica. The Harley-Davidson Knucklehead 2025 is everything
06:47a legacy bike should be. It honors the past with authenticity, embraces the present with smart
06:53engineering, and rides into the future with purpose. It's not a museum piece. It's not a gimmick.
07:01It's a living, breathing machine with soul, steel, and serious performance. For collectors,
07:07this bike is history reforged. For new riders, it's a bold entry into the world of American
07:13motorcycles. And for lifelong Harley fans, it's a dream finally realized. This is more than a
07:20motorcycle. The Knucklehead isn't just about riding. It's about standing for something. It's about grit,
07:28sweat, chrome, and wind. It's about every rebel who refuse to conform and every rider who needs the
07:34road like they need air. The 2025 Knucklehead isn't here to blend in, it's here to lead the pack.
07:41So the only question is, are you ready to ride the legend?
08:11Mr. Lauren.
08:35I'm sorry.
08:39You

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