Bottom Bracket and Crankset Upgrade
Hey all! I'm riding my 2000 model Trek 930 a lot this spring. I notice a roughness in its bottom bracket. Bikepedia gives a similar 1999 model an LP 27 E bottom bracket. I'm thinking about buying a new, lighter crankset, like an XTR FC M980 triple. If I make this upgrade, which BB should I also get? Something like SM BB 93 XTR? Would that work? I think XTR components would add a coolness factor, I'm not looking for the cheapest repair. What about compatibility problems? What tools will I need to make the swap? I'm planning to do it myself.
PS, I've asked at two bike shops and got, "buy this new bike, it's cheaper" for an answer. I'd have gladly paid for costum work, but sales people think their role is to help me make financial decisions. This bike is my project. I'm not going abandon this project to buy a different bike. Thanks!