I am a fan of all things Hercules/Sachs with my main priority being the Hercules brand since I owned and raced one in the late 70's, my first true competition dirt bike. I thought the Hercules Wankel was the best looking Wankel engine of the time, although the Suzuki R5 was probably the more interesting complete package. This is definitely a spectacular revision but I hope they preserved all of the donors parts should they ever want to return the bike to stock condition. Read more here in BikeExif.