Part of Japan’s flourishing Harley scene, Shintaro operates KID Custom Factory out of Fukuoka on the northern shore of Kyushu Island, and he’s a man gathering real momentum. After kicking off his career building formula cars in Suzuka, Shintaro pivoted to custom bikes 17 years ago and never looked back. While his portfolio extends to British twins, Shintaro clearly specializes in all things Harley-Davidson, and there’s magic at work when he gets his hands on a classic Big Twin.

The chopper we’re profiling today takes the Shovelhead platform a completely different direction than the FLH bobber we covered last year, but both emphasize the pillars of KID Custom’s design. Visual balance and carefully handcrafted details are paramount, but should never impede functionality. Beyond the mechanical actions of starting, turning and stopping, Shintaro insists that each machine is a thrill to ride in the real world.

The impetus for this project feels like the perfect storm: a tall customer, a 1978 FXS Lowrider and a desire to turn up the intensity from his typical cool, refined aesthetic. The pieces couldn’t have come together better.

With the FXS completely disassembled, Shintaro got to work on another one of his hardtail frames. That job can be done several ways, but with the cast axle plates bearing OE-style numbers and the seamless transition into the new rear triangle, you can be assured it’s been done correctly. From there, Shintaro carefully removed unused tabs, windowed the neck and prepped it for internal wire routing. Coated in a show-chrome finish, the chassis immediately sets a precedent for the rest of the build.

While all the magic on a Big Twin usually takes place on the rider’s right, there’s plenty of action on the B-side as well. A BDL 1.5-inch open primary transmits power to the four-speed transmission, and the engine pulley and clutch pressure plate wear a matching ribbed, dimpled motif that matches the points cover. The controls are one-off mids with masterfully crafted linkages, and a small electronics panel in front of the oil bag handles the main switchgear. 

Like Kid Custom’s bobber, the FXS has a one-off handshifter inspired by traditional knife handles—this one finished with aluminum grips. For a final trick, the front cylinder’s exhaust pipe snakes around the left side of the bike before terminating perfectly on plane with its right-side mate. The chrome is impeccable, and a pair of beveled inserts elevates the fit and finish even further.

Moving onto the bodywork, Shintaro kept things grounded in the era of traditional choppers. The fuel tank is a narrow Sportster, and it’s mounted Frisco-style with a shallow tunnel that exposes the glimmering Shovelhead engine. The bike’s owner specifically requested a flame motif inspired by the Karura-en, a spiritual, purifying fire typically depicted behind Fudō Myō-ō, the Immovable Wisdom King in Japanese esoteric Buddhism. 

Shintaro brought the motif to life, adding physical dimension with 5 mm steel tubing, before bodywork and paint by Suenaga of Custom Paint FFF in Miyawaka City. Extending back to the rear fender, and comprised of candy red, orange and silver, the paintwork blends influences and stands unique alongside typical flames executed in paint alone. 

Dubbed ‘Carrura,’ the finished FXS chopper is now in the hands of its new owner, who fully intends to put miles on it. And why not? Shintaro Kido put effort into all the right things, ensuring this show-quality machine can actually be used on the street. As his core ethos reads, the bike is balanced and packed with details without impeding functionality. 

Even if Harleys with long forks aren’t your thing, it’s impossible to overlook the craftsmanship on display here, along with the decision-making that went into every custom piece. There’s nothing garish or out of place, or as our friend Kazuo Matsumoto puts it, “the bike never loses its elegance.”