I just bought a new bike. It's an 08 Diamondback Response Sport. It's not really broken in, but I'm having a small pop sound with it...
If I hold the bike upright and apply the front brake and push the bike front/back, I hear the pop sound. When I place my hand on the headtube (where the real steering action happens) I can feel that the pop is happening within there.
I DO have a warranty with this bike but, the bike shop is like 35 miles away... so if this is just a minor adjustment I can do myself I'd rather do it. Thing is, I'm not entirely sure where I'm actually working with this.
Here's two pictures of my bike, close up to the area I'm talking about. I'm linking these just so you guys can get an idea of what I'm looking at.
Note - Particularly at the top "ring" of the headtube, right above where you see (on the 2nd pic) the strong box logo, that's where I can feel the pop the most.
My buddy suggested I need it tightened. If I could avoid a decent drive to get this adjusted, I'd be happy. If this is something that a novice like me just shouldn't be messing with, feel free to tell me so.