You can tighten the quick release seatpost clamp by opening the handle and turning it in a clockwise direction, it should tighten up, then close. If that doesn't work you may have the wrong sized clamp for the seatpost.
You can buy a new longer seatpost at any good bike shop.
Google is an awesome resource for bike maintenance. There are thousands of videos online that show you how to fix things.
You can fix almost anything using videos online. I fixed my gas stove and replaced the headlight bulbs in my car this year with the help of a video I watched on the net!
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I agree with the SARGE. Take your bike to your local reputable bike shop to have it properly tweaked. Most bike shops will charge a small fee (my local shop charges $35-$40 per tweak session) to make sure your bike is in proper working condition.
This would be a good investment because you'll have someone who really knows bikes make sure yours is okay. If your brakes seem to be rusting, you may need new brakes. Oild won't be enough if there is a problem with the brakes. You might need to get them changed entirely.
However, before you pay for a tweak, ask the experts if that bike is the right fit for yout. Bikes do come in different sizes. They'll tell you whether or not your bike is worth tweaking or not.
If they don't think the bike is any good for you, they might do a swap. Many bike shops do sell second hand bikes. So, the might consider a trade in. Once again, consider taking your bike to the experts to have it looked over.
If there is a local bike shop take it in to them and have them go over the bike to check for fit and to see if it needs a tune up. If the seat post is tight to the frame and the seat rotates check the tightness of the seat to post bolts.
I just got a bike a few weeks ago and am looking for advice or help with a few things. The first one to me is the brakes. I tightened the know by the lines and it helped but I am not sure if the lines for the brakes need to be adjusted or possibly the brake pads need to be lubricated with other parts in the area. If I do lubricate them, what will work well and be dirt repellent? The lady said wd-40 and I am sure it will. I just think something that wont attract dirt or is dirt cheap, might be better in the long run. The second question is my seat keep turning when riding. The seat is old and I am considering getting a new one entirely. Theirs a handle you open and close to raise and lower the seat. That part is as tight as possible, not sure why the seat still moves unless its age or something else entirely. The last thing is finding a seat with a longer post. I think about 2 inches of the post should be in the seat and its hard to do that without me feeling squished in the legs and wanting to raise the seat. My concerns are the seat being secure and me feeling more comfortable on the bike. Other than that I am fine and don't want to get to far into things on my bike and not know what I am doing. Thanks in advance!
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