No bike lock is invincible, but this one is close.
No bike lock is invincible, but this one is close. (Altor)

Altor 560G Bike Lock

No bike lock is invincible, but this one is close.
Kip Malone

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This bike lock ($180), made from titanium instead of steel, is strong and light—just 1.2 pounds. String two locks together for more reach. 

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Lead Photo: Altor

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