So if this is the same frame as the 250, why wouldn't the Unibiker guards for that bike work? Maybe the radiator is larger, but I also thought the side fairings were the same. The radiator shrouds are the same as the YZ250, but the radiators on the WR are larger and the left one actually hangs down below the shroud. Does anyone else think it is strange that people are talking about the 2012 WR450 as having a YZ250F frame but dimensionaly it is closer to the 2007-2011 WR450F? All of the parts that bolt on to the frame are going to have similar dimensions to the older WR's.... however the 250 frame changes some dimensions pretty drastically such as seat-height, ground clearance, and peg height over older WR models.