When Harley-Davidson stopped building the Buell 1125, Ronin Motor Works was inspired to build a bike based on it. The Ronin 47 features a cast aluminum alloy linkage fork, with easy fine-tuning available via a penske mono-shock, radiator in the front to help cool the Rotax-designed motor which has been known to generate a lot of heat, and stacked low and high beam headlights.