OnGuard Pitbull Mini U-Lock 8006The OnGuard Pitbull Mini U-Lock has a 14mm thick shackle. Lighter than Brute Mini but with the advantages of X4P Locking Mechanism, the OnGuard Pitbull Mini U-Lock is perfect for fast commuters or bike messengers who are weight sensitive. Includes 5 Laser Cut Keys with a Micro Light on one for night time use.768661280062