Looking for a bike, trailer or something else? Let Google help without you even being in front of the keyboard. Here's how:
Go to
http://www.google.com/alerts and you should see something like this;
Enter something like
site:cincinnati.craigslist.org ninja 250 (change cincinnati to your city listing in craigslist) into the search query and set the rest of the preferences as you see fit and click create alert.
You can create as many alerts as you want too.
Depending on your alert settings, you can get an email
Clicking on the link in the email reveals and notice all results are trimmed down to craigslist in cincy.
Now tell Google to go find your stuff and hope if helps you find a bike faster.