If you’re even halfway serious about custom motorcycles in Japan, you already know the name Shintaro Kido. Born and raised in Fukuoka City, Kido took the long road to mastery—starting in a Suzuka factory building formula cars, then grinding away in a local custom shop before launching Kid Custom Factory in 2008. Despite the name, there’s nothing junior about his work. From raw Shovelhead choppers to futuristic Milwaukee-Eight builds, Kido’s machines strike a rare balance between brutal metalwork and refined design.

His latest build, Garnet, is a perfect example.

The project traces back to Kido’s 2019 Mooneyes Show bike, Cassis, which earned the Power Plant Award. A Tokyo-based rider saw Cassis and wanted something similar, but built around a more street-friendly Evolution motor—and with even more visual punch. With over 500 miles separating builder and client, much of the planning happened remotely. “It was a challenge,” Kido says, “but it forced me to find new ways to turn ideas into metal.”

Starting with a Softail frame, Kido worked tirelessly to strip away its visual bulk. A 21-inch front wheel, 18-inch rear, and a Sportster-derived front end helped create a slim, aggressive stance without sacrificing rideability. The seat posed another challenge: achieving a classic cobra look on a Softail’s swinging rear. Kido solved it with a clever two-piece design that keeps both style and function intact.

Details make Garnet shine. The tank and rear fender are fabricated from multiple welded sections—not painted illusions—showcasing Kido’s metal-shaping skill. A blood-red-to-black fade by Makoto at FFF, pinstriping by Dirty K, and a handmade brass tank badge by artist Shou finish the bike with understated menace.

With Garnet, Kido didn’t just build a motorcycle—he delivered a sharp, unforgettable statement. HB

Photos: @Steeldog_Photo