Thanks for the replies guys. I havent ridden either the Kilo TT or the Mark V or any other fixed gear for that matter, thats why im not sure if my bike is worth keeping and upgrading or not because I don't know a good bike from a bad one 100%. I suppose if the setup I have right now is pretty decent I might just wanna work on upgrading parts here or there and I can always upgrade the frame somewhere down the road? What is a good BB because mine is starting to creak and groan a little bit and might wanna swap that next. And Can anyone tell what kind of Sugino cranks those are?