This video will show you how to grease a carbon seatpost. This applies to all carbon bicycles, as well as any bicycle using a carbon seatpost.
This video will show you how to grease your seatpost. This applies to all bicycles that use a seatpost. (Greasing your seatpost will prevent it from seizing inside the bicycle frame.)
Here is a video about how to replace a flat handlebar, typically found on a mountain bike.