The TRX850 Trixie was Yamaha's first stab at crossplane cranks in their own brand. IDK, but they may also have developed the idea for some other maker, as well. The 850s tended to use oil - dunno if that was ever fixed. In Yamaha tradition, it was probably fixed the year they cancelled it. The current 07 Yamaha is no relation, as it has 4 valves instead of 5, FI instead of carbs and 6 speeds rather than 5. As usual, no US sales.We got the (IMO) butt-ugly TDM850. OK., some liked her, but not here.