「Customだからって好き勝手に作らない」スポーツスターを敬うOSFの流儀　　　　　　　　　　　　　　　　　　【スポーツスター】【ハーレーダビッドソン】【チョッパー】

[Respecting the Original] OSF's Custom Style: Carrying on the History of the Sportster "Just because it's custom doesn't mean we can make it however we want." —Respecting the history and structure of the base vehicle, and building a new design on top of that context. That's the OSF (OLD SPEED) style. This time, we'll thoroughly examine a 1998 XL1200S that we fully customized about 10 years ago, and which, while being cherished and ridden by its owner, still exudes an undiminished aura. At first glance, it's a fully customized bike that bears almost no resemblance to the original, but in fact, most of the frame remains stock. There are meticulous calculations hidden within to ensure that the "Harley-Davidson essence," unlike SRs or Japanese American cruisers, is never compromised. [Video Highlights] ・Modern Hummer Tank: An homage to the 1950s Hummer, with a clever design that hides the main key in the tank. ・The Aesthetics of Subtraction: Wiring, computer components, chain guard stays—everything you don't want to show is completely eliminated. One-off muffler: A deep, resonant exhaust note that vibrates in your gut (sound check included in the latter half of the video). Knowing the fundamentals (like how to make Japanese dashi stock) is what allows you to create truly interesting and creative custom builds. This video discusses the builder's "custom philosophy," going beyond simply bolting on parts. For Sportster riders and those considering customization, please watch until the end for inspiration on building your dream bike. Photographer (Photography Cooperation)   / nigiri__osb   [January 2026 New Products & New Arrivals Summary] Please see here: https://www.old-speed.com/post/1%E6%9... ●Parts sales are available at the website https://www.old-speed.com/shop ●For inquiries, please contact us via email through our homepage https://www.old-speed.com/ ■ THE OLD SPEED FACTORY ■ Latest information is available on: ●Instagram story   / old_speed_facto.  . Request *Currently, visits are by appointment only. Please contact us in advance before visiting. For details, please see our homepage. https://www.old-speed.com/ ■Chapters [00:00:00] Opening: "1998 1200S" built over 10 years ago [00:03:06] The secret of frame modification (stock frame and strut modification) [00:04:21] OSF's way: What is the custom philosophy of "not building whatever you want"? [00:06:16] The gimmick of a "modern-day Hummer tank" with a hidden main key [00:08:53] The aesthetics of the beautiful saddle seat mount and wiring concealment [00:09:46] Commitment to using genuine Harley-Davidson parts (Model K-style fender) [00:11:04] A one-off oil tank with a playful touch [00:11:45] Introduction of handlebar and suspension parts (mirrors, stem, etc.) [00:14:04] Important points to note regarding the assembly of the carburetor and air cleaner [00:15:28] Introduction of a one-off megaphone muffler & checking the powerful exhaust sound [00:16:51] The unconventional (?) design and attention to detail of the ignition system and chain guard [00:18:11] The parts configuration on the left side and respect for the genuine footpegs [00:19:42] Ending: "Future Custom Concepts" that Emphasize the Fundamentals #sportster #HarleyDavidson #Sportster