As most of you know, I recently bought an 04 boulder se. I dug out an old mountain bike I had because my girlfriend was wanting something basic to ride around town with me. Unlike me, where I want to have something very reliable and study, she just wants to be able to coast at 15 mph and able to stay in shape a little bit, so when I told her she can have my old mountain bike she flipped out and was so excited.
At first I kind of cringed, thinking well maybe it's best we get you something new. But I bought a 300 dollar bike when I'm going to do a lot of long distance and occasional trail biking, she'll probably ride about 3 or 4 times a week a couple miles around her area. So I figured a quick checkup on this mountain bike was necessary, and that if it passed my "inspection" it would suit fine.
I redid the brake systems, they were a little dirty and needed new washers and new brake shoes. Now they work like a charm. I'm unsure of something else though. If I move the bike forward but continuously hit the front brake, the front end kind of jumps. I don't know the proper name, it's right below where the stem connects to the handlebars, but above the fork. Look at this picture.
When I hit the front brakes, it's evident this piece is a little loose. It's not very loose, just a tad. It's one of those things that you know doesn't matter, but you want to fix it anyway "just because."
Do I just have to tighten this up, or what? I didn't have the proper tools with me when I took the bike to my girlfriend's house and noticed it, so I figured I'd ask here before going over there to screw it up later this week.