These Are The V-Twin Engines That Power Arch Motorcycles - Jalopnik

Arch Motorcycles, based in California, is leaning into the classic V-twin sound for its bespoke cruiser-style builds. While Harley-Davidson and Indian have long used V-twin engines since the early 1900s, Arch is tapping that same layout with S&S V-twin powerplants. The difference is in the execution: Arch motorcycles use fuel-injected “big twin” engines with a downdraft intake system, rather than the carbureted overhead-valve setup associated with older custom choppers. The story also notes that Arch’s racing ambitions could eventually shift what’s under the tank.