First let me start by saying hello to all. I am the proud owner of a 04 ZX636R. I am in need of a chain swap and I could use some advise. I don't really push the bikes top speed potential but I love the twists. I was considering uping the sprocket size in the rear to get a bit more out of the lower gears. I figure I lose some top end but not sure how much. What do you all think? Also X vs O link chains.