Review on Kryptonite Evolution Bicycle Disc Yellow by Mike West

I bought this lock specifically to use as a connecting link for a Schlage security chain with a 12 mm tulip ring. As with most Kryponite locks, it is solid and well made. This Kryptonite/Schlage chain combo is primarily designed to protect our mountain bikes on my truck during one of those bike rides where I end up parking and leaving the truck on a public errand. or so. Note, however, that this or any other combination of lock and chain is not secure if you lock your bike to a lamppost and leave it outside overnight. There is no such thing as an unbreakable lock or chain for a determined thief. However, the lock and chain combination must be strong enough that a thief will have a hard time stealing your bike quickly, especially if it's on the street. visible high traffic area. The combination is also scary enough to discourage these criminals and look elsewhere for the target.