Apparently EBR inherited a number of 1125 engines which they rebuilt into the 1190's. That was purely in order to conserve resources. I didn't hear a number, but they ran out of those 1125's early on. Now the engines are essentially built from scratch in house. Most of the engine is built in the USA, with some parts like cams, cranks, shafts and gears still cast / forged at what I assume is Rotax. Story is EBR does own the rights to the engine and can build however they see fit, with whomever they see fit.