Blackburn Sing Sing U Lock

Rely on the Blackburn San Quentin U Lock to protect your investment when you can't be around. The 14mm alloy steel shackle lock with anti scratch liner tells thieves to back off, and it won't damage your paint job. The bump proof, pick proof dual bolt lock mechanism confounds the most savvy criminal, and a 2500 theft replacement guarantee ensures that you're taken care of if you run into a criminal mastermind.