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  • 11mm hardened steel shackle material allows reduction of shackle diameter while still maintaining high performance standards
  • DuoCore hybrid cylinder technology provides increased security


View all Kryptonite U-Locks

REI membership


Best Use Bike Commuting
Lock Style U-lock
Lock Type Key Lock
Lock Thickness (mm) 11 millimeters
Material(s) Steel/nylon skin
Dimensions 6 x 2.75 inches
Mounting None
Weight 1 lb. 10 oz.
Rated 3 out of 5 by from Sticks This is a really light and compact lock- great to carry in your back pocket. But...I had trouble with the key/locking mechanism from the start. I gave it many months, oiled it, greased it, gave it time to work out, but it continued to be troublesome. Maybe mine was a lemon, but I exchanged it for a lock that's easier to use for less than half the price.
Date published: 2016-04-24
Rated 3 out of 5 by from Sharp key, difficult lock. I cut my finger open on the key one night, because of how the key is ground, there are several sharp edges. It is also difficult to put the key in the lock with all the gates you have to align to get the key in all the way. Aside from that, the lock is pretty light weight and fits nicely into the side slot of my rear rack on my bike and seems like it would provide OK protection.
Date published: 2017-02-05
Rated 5 out of 5 by from It's a perfect fit I bought this as a secondary lock for when I need a little extra protection more than my cable around town. perfect to fit around my frame and a street sign but that's it. Not much room for a wheel and street sign.
Date published: 2016-08-21
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