Blackburn Sing Sing Compact U-Lock

Blackburn enters the lock game, drawing on the high quality design practices that put them on the map. The Sing Sing compact lock is one of their toughest designs, with a chunky 14mm hexagonal alloy steel shackle that's virtually impossible to cut or pry open. The short length and compact design make it perfect for fitting in a back pocket or small bag. Anti-scratch liner keeps your paint and components looking great. Advanced locking mechanism is pick-proof. Includes three laser cut keys and Blackburn key replacement program. $2500 Theft Replacement Guarantee. 159mm long x 76mm wide.