Bicycle Locks Comparisons

Model and price*	Size and weight	Features and warranty
Comparison Chart - Bicycle Locks
Kryptonite New York Fahgettaboudit U-Lock Where to Buy (*est. $75)	19 mm shackle, 4.6 pounds	Protective vinyl coating. Anti-theft one-year warranty covers up to $4,500. 3 keys, one with high-intensity bulb and replacement battery. Over-hardened steel sleeve over crossbar. Sliding dust cover extends cylinder life. Double dead bolt locking. Center keyway protects against leveraged attacks. Company rating 12.
OnGuard Pitbull STD 5003 Where to Buy (*est. $25)	13mm shackle 3.2 pounds	One-year anti-theft warranty covers $2,250 bike value. 4.5 in x 9 in. 5 keys and carrying case included.
OnGuard Bulldog DT 5012 Where to Buy (*est. $30)	13mm shackle	One-year anti-theft warranty for up to $1,500. Includes supplementary cable lock. Four keys (one lighted),
Kryptonite New York Fahgettaboudit Chain Where to Buy (*est. $75)	11 mm chain, 14 mm lock shackle	Six-sided chain made of triple-heated boron manganese steel. Narrow inner width (defends against leverage attacks), protective nylon cover, 14 mm steel shackle on lock. Hardened steel crossbar, double dead bolt locking, sliding dust cover. 3 keys, one with high-intensity bulb and replacement battery.