bars and depending on your weight fork springs and a harder rear spring. If your a little guy (like myself) stock suspension will last awhile. But eventually become way to soft. Set of tires would def help to. The stockers blow.
a decent chain does not cost that much...just buy a 120 link 420 pitch and you will for sure have enough...use a chain breaker and walla custom fit ....you probably will only use between 80-100 links but having a bit extra when your mocking something up does not hurt...better to be safe than sorry