Review on 🔒 DINOKA Heavy Duty U Lock for Bicycles - 16mm Security U Cable Lock with 4ft Flex Cable and Durable Mounting Bracket for Road, Mountain, Electric, and Folding Bikes by Jim Fuhrer

26.8 oz (without mount), <2 lb Tip: Be sure to fully insert the key before turning. This is copper so will bend/break easily if only partially inserted. (Copper is corrosion resistant but soft.) I bought this U-lock because it fits my bike frame and bike rack nicely without a lot of the extra space that would be required to use a pry bar to pry it. (It also weighs less than my larger kryptonite) I had/had 2 similar locks (appear to be identical, different sellers) and it took us 90 minutes with a dremel to remove one when we lost the keys. They also survived a week in Hilton Head, notorious for stolen bikes. There seem to be several sellers selling the same lock on different listings - at least they look the same and the keys have the same logo. The keys are not available and they seem different from each other, at least for the 3 we received.