OnGuard Bulldog Standard 115x230mm U Lock 8010OnGuard Bulldog U Lock 8010 has a standard shackle length with X2P Double Bolt protection. Shackle Dimensions: 115mm x 230mm (W x H x Diam) (4.53" x 9.06") x 13mm (0.51") D. Comes with 5 Laser cut keys, One lighted for night time use.768661280109