If you've never used one before, a ring lock might very well seem a bit frivolous; just another bit of equipment cluttering up the lines of your beautiful bike. If you've used one before, you know exactly how much easier and more pleasant this little bit of equipment can make your cycling life. Imagine parking your bike outside your coffee stop: not having to deal with chains, cables, or bike racks; and never having to worry about unscrupulous passersby succumbing to the temptation to ride away with your baby.
-The Axa Defender is compatible with Plug-In chains and cables -The slickest and easiest to use ring lock -Fritz likes the smooth outline key; it sits comfortably in any pocket -Does not include mounting hardware