will need to mail your notice of theft within 7 days to Kryptonite so don't delay. For more information go to www.kryptonitelock.com and click on Customer Service. If you don't already have one, sign up for an eBay account and create a saved search on ... If you don't already have one, sign up for an eBay account and create a saved search on the make and model of the bike (example: Cannondale, Six) which will provide you with automatic daily emails for any new bikes posted that match your make/model (Cannondale, Six). That way you can keep an eye on eBay. If you see your bike on eBay, report this to the police. Gumtree sells lots of bikes. Some are stolen. They have operations in the US, Australia, Canada ... Gumtree sells lots of bikes. Some are stolen. They have operations in the US, Australia, Canada and lots of other places. Wherever you are, set up an email alert for new listings of bikes being sold. Use the make and model to create a more select search. For instance, in the UK you can set up this alert: http://www.gumtree.com/cgi-bin/subscribe\\... Or in Sydney it's http://sydney.gumtree.com.au/ If you've seen your bike on Gumtree report it to the police immediately so they can contact Gumtree to retrieve seller information and trace the bike. Gumtree may even use your bike listing as a trap to catch the bike thief. For users in the US, Craiglist has a number of auto-search tools -- one