My 7.2 FX is squeaking when I pedal. The sound doesn't have any grating in it, and happens irregularly every 4-6 cycles of the pedals. I flipped the bike over and cycled the chain while listening for the sound, and I narrowed it down to the front chainset and the rear derailleur. The chain is lubed with a light silicone grease and is fairly clean. Do I need to put on more chain lube, or could this be something else? The bike has less than 200 miles.

I can make the squeak happen by pulling on the rear derailleur lower pulley. It almost sounded like the noise was coming from where the pulley assembly connects to the knuckle joint. Is this normal or not?

I can't answer you pal, try bike mechanic forum,good luck.

I can't answer your question, but, I own a Trek 7.2 and its a noisy bugger, and it comes and goes, might be a clunk one week, a squeak the next, and its by the crank also. To be honest, I really have never tried to narrow down the area for two reasons, 1. It comes and goes, it might be squeaky this week, and next, but then a different sound after that. And two, it has been to the LBS and they didn't think it was an issue.

I thought it had to do with my weight, as I am 230ish and 6 foot tall, I thought maybe its just crying as I pedal, lol.

Well I don't know if it's "normal" or not, but if I were you, I'd spray/drip oil on all the moving parts of the derailleur.

Thanks for the input, I'll update if I figure it out.

Edit: I wasn't using enough lube on the chain.