I'm takin my bike for one last ride tonight, then plannin on puttin it up for the winter. What are some things that i should do. Should i drain the radiator, or can i put 50/50 antifreeze in it. I do want to sell it, it's on craigs list so i do want to have it ready to go if someone does want to ride it. I just don't want to have to worry about it if the temps drop before i sell it, or pull it out of the barn in the spring