Kryptonite Krypto Lok 4x9 U-Lock High Security U-Locks provide high security for your bike while you leave it unattended. The Kryptonite Krypto Lok 4x9 U-Lock features a pick and drill-resistant disc-style cylinder. The Anti-Rotation Double Deadbolt shackle helps fight against twist and cut attacks while the 13mm hardened performance shackle resists cutting and leverage attacks. A reinforced hardened cross bar design gives more protection for the lock internals. This lock includes a Transit Flex Frame-U transportation system which allows for versatile carrying. The Krypto Lok 4x9 is available with or without a 4-foot cable for extra protection. Features Anti-Rotation Double Deadbolt shackle helps fight against twist and cut attacks13mm hardened performance shackle resists cutting and leverage attacks Reinforced hardened cross bar design gives more protection for the lock internals Specifications Shackle Length9"U-Lock Diameter13mm Shackle Width4"Cable Included Yes or No Lock Style Keyed or Combo Security Rating6 out of 10Weight3. 6 lbs | Kryptonite | Kryptolok 4X9 U-Lock 4-Digit