What is a must in terms of prepping this bike ??? I'm looking at a crate in my shop.....not even open yet. I live at sea-level. I'm coming off of a WR 450.....Awesome ride, but a little heavy for chasing two smokes at the MX track. Can go for awhile with the best of them.....but the weight gets me before the end Also is the version any different than other models...better/worse or the same ???