I own a Trek 7000 which I have been using for about a year. The bike has worked great but I have been having a problem with a very slight rubbing of the brakes on the front wheel. Every rotation I will hear a slight rub for a split second. If I stop and tightly press down on the brakes it seems to go away for awhile.
I have brought the bike to the shop a few times and they have adjusted the brakes and put the wheels on a truing stand but it is still an ongoing problem. I've probably put about 150 miles on the bike so far.
I bought my girlfriend a Trek Neko less than a month ago from the same bike shop and she is having the same problem... it is very frustrating and before I bring both bikes back to the bike shop and raise hell I wanted to ask the community if this is a common problem on new bikes and if there is an easy way to fix it myself so I can be done with the bike mechanics. Thanks a lot!
As someone who works at a bike shop, I would implore you to not come in and raise hell because your entry level bike isn't working perfectly. As Mustachians, part of our badassity is realizing that we're not always going to have stuff that's really awesome, because it just isn't worth the extra cost. Plus, you catch more flies with honey, it's generally a good idea to be nice to people, and all that. If the bike shop's worth their salt, you won't have to be a jerk for them to set you straight.
Three things:
1. Your wheel isn't true. Either your rim is bent, or (more likely) some of the spokes have detensioned, making it so there's a wobble in your wheel. Detensioned spokes are pretty common in cheap wheels that are built by a machine rather than by an experienced wheelbuilder. It needs to be pulled back into tension. This isn't a problem with Trek or your bike shop. This is a problem with a cheap wheel.
2. Your brake may not be centered - there's probably either an allen wrench or a phillips screwdriver on the brake somewhere - possibly on both sides - that adjusts the centering of your brakes. When you squeeze the lever, you want both pads to hit the rim at the same time.
3. Your wheel may not be centered in your dropouts - if your wheel is canted one way or the other, you'll get pad rub.
If you want to learn to work on your bike yourself, go to the library and get "Zinn and the art of road bike maintenance" - it will tell you, in depth, everything you need to know. Also, you can go to Park Tool's website and they've got a bunch of step by step guides. You will need some tools - and you may be able to find them more cheaply online, but if you came to my shop and asked me how to use them (preferably not at 2pm on a Saturday) I'd be more than happy to take you through how to use them, and do my best to add more value than the $2 you would have saved by buying from Amazon. You may have to ask at a lot of shops, but I find most people are pretty helpful.