Originally Posted by johnny99
The main thing you need to do is clean and oil the chain regularly. Also check for chain wear, though that shouldn't be a problem at 2000k unless you ride in really dirty conditions (or don't oil enough). Maybe check the brake pads for wear/dirt and check the tires for wear/cuts. And check the wheels for trueness. If you regularly ride in the rain, repacking your wheel bearings may be a good idea. That's about it.
After what number of Km would it become important to repack the wheel bearings (and perhaps also the other bearings in the direction)?