Lock your bike up and forget about it, because the Blackburn Leavenworth U-Lock is pretty much bomb proof. A hexagonal 14mm steel shackle with anti-scratch liner has a 10 ton cut-strength. The hexagonal design prevents the shackle from spinning, which effectively doubles its resistance to cutting and leverage attacks. A dual bolt lock mechanism engages the shackles at both ends to make it bump-proof and pick-proof.
Hexagonal 14mm alloy steel shackle with anti-scratch liner
Dual Bolt Lock Mechanism Engages the shackles on both ends and is also bump-proof and pick-proof.
Lock mechanism is impervious to bump keys and picks
Three laser-cut keys with key replacement program
182mm x 104mm (regular)
224mm x 104mm (long)
Hexagonal Shackle Design Prevents the shackle from spinning, effectively doubling its resistance to cutting and leverage attacks.
Mounting bracket included
10 tons of cut-strength
Maximum resistance to cutting and leverage attacks
$2500 Theft replacement guarantee (Offer is only eligible in the US)
Security Rating: 9
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Reviewed by 1 customer
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Comments about Blackburn Leavenworth U-Lock:
I bought this particular lock because it specified 16mm. What I received, according to the packaging, is 14mm. I'm disappointed, but it's not worth returning.