OnGuard Double-Team PITBULL U-Lock and Cable OnGuard U-Lock PITBULL Series PitBull Double-Team Standard U-Lock is double-teamed with 4 foot fully coated, braided steel cable allows user to leave front wheel on bike and extra locking versatility. X4P locking mechanism offers superior protection. Security Rating: 83 Lighter than Brute Mini but with the advantages of X4P Locking Mechanism. Perfect for fast commuters or bike messengers. 5 laser cut keys 1 micro-light and 4 extra grip keys Micro-light key projects a bright white beam.