I'm beating my CRF250X to death here in the desert, but it's so light weight and fun to ride. My DRZ400E has all the motor I need for the desert / trail riding, but it feels so heavy it tires me out too quickly. Is the CRF450X the perfect bike, the one bike that does it all? Does it feel light to ride, smooth power that just keeps on pulling, don't need to shift it constantly? My 250X has great suspension, the DRZ isn't very good in comparisson. Is the 450X a slightly bigger and easy power version of my 250X, :D or is it a BIG bike that gets HEAVY as the day gets longer? Should I trade-in 2 for 1???