:) Soryy for this but the amount of crap that is getting posted at the moment:
Do you ever bash your knee on the stem - what is the point in asking the question, it is going to do jack for your riding
Headphones that dont fall out - a load of crap, totally nothing to do with trials. If worried about losing music then go to a shop or even better a sports shop to get them
Back grounds - as tones of people keep saying use the search thats why it is there, so topics dont get repeated.
Rusting, how can you stop it - there is this little thing inside your head called a brain, if you use it then you may come up with an idea. :)
sorry to be the biggest dick ever but i just had to say it. Not saying anything personal about anybody, but before you post just sit back and think about what you are posting. :)