Can I attach a wire cargo holder to my bike myself?

Question

I'm planning to buy a bicycle soon. Can I attach one of those flat wire cargo holders--sorry, I don't know if they have a particular name--to the back of the bike myself, or must the bike come equipped with it by the manufacturer?

Answer 1

http://www.pricepoint.com/detail/13325-2...

easy as pie.

http://www.pricepoint.com/detail.htm?sty...

Answer 2

You can attach it yourself or have the bike shop do it for you when you purchase your bike.  I have one that clamps onto the seat post that I like better than the wire mounted one  ( I have used both types).  The clamp on one goes on and off easily as needed, while the wire one is intended to stay the bike. I believe mine were both made by Topeak and my bag is interchangable between the two types of cargo holders.