Master Lock 8290DPS Street Cuffs

The 2017 Master Lock 8290DPS Street Cuffs are a pair of 3" (7.5 cm) diameter handcuff-style locks, joined with a drivetrain style chain. This ingenious design allows a cyclists to snug both ends very close around bike and anchor, thwarting jack and prybar users; the pivoting links of the chain joining the cuffs make it well night impossible to get leverage, in case of an old-school pipe assault. Hardened steel wards off cutting tools. Fairly lightweight, easily snugged away in saddlebag or pack, and long enough to reach past other bikes in case of a crowded rack or parking meter.
A very good lock.