Any extra noise or slight malfunction cannot be tolerated on ones own bikes
For new bikes, the first thing to do is to take the bike apart and check everything, unless said bike has been put together by someone you would trust with your dear life. F.ex. yesterday I changed the front chainrings, and checked the bottom bracket at the same time - this was a pretty new bike and I think I did not check the BB originally - and it was so loose I could almost thread it out with bare fingers...
Everything must work exactly as supposed and perfectly.
The only exception is while riding - it is acceptable to have noise from drivetrain, for example, if at the moment you are riding along a muddy trail and have a couple of kilos of mud and debris sticking to said drivetrain. When you get back home, you of course painstakingly clean, adjust and lube everything again, ready for tomorrow.
Last edited by Mr.Auer; 11-19-11 at 10:09 AM.