Kryptonite is the number on name in bicycle security, so why choose Abus over Kryptonite? For one, Abus has been making locks since 1924... over fifty years longer than Kryptonite has been around.  They have more key combinations, have more options available for frame mounting, and a program that will give you the same key for multiple locks.  They also make ridiculously light U Locks with double locking mechanisms.

How light?  The Futura Mini weighs a full pound lighter than the Kryptonite Evo mini in addition to sporting a higher security rating.  It's small enough to fit in a pocket or large handbag and won't weigh you down, making it perfect for bike commuters.