My BB is original to my Sputnik (which is 5yrs old) and I have basically no knowledge on BBs. Is it time to replace it? I have put approximately 9000 miles on the bike. I feel like the bike has lost it's smoothness and is harder to crank and I don't think I have gotten weaker (or not much weaker).
Also, I have heard a lot about external Bottom Brakets being the way of the future. Anyone know if it is a good idea for fixed? Anyone doing this yet? What is your setup? I know I will need a new crank, but I haven't been able to find a solid plan on what to do around the web. I like newer/better and would probably spend the money on it considering the amount of miles I ride.
Or, would it be a better idea (and probably more economical) to just replace my standard square and cartridge bb?