The OnGuard Combo DT U-Lock has the convenience and security of the Bull Dog Combo bike lock, but with a 4 foot steel cable. The OnGuard U-lock offers strong resistance against leverage and cutting style attacks, while the extra braided steel cable gives you more flexible locking options. You can easily secure quick release wheels or components as well as your frame. A four-digit combination you up to 9,999 numbers to choose from for extra security. Review | 4.5 / 5 "On the money in terms of top security at a wallet-friendly price" - Bikeradar Key Features: X2P Double Bolt Locking Mechanism locks shackle on both sidesNEW Z-Cylinder is bump-proof and resists picking, pulling or drillingHefty 13mm (0.51”) hardened steel shackle resists cutting, prying and jackingRounded design and centred keyway eliminates pry pointsDouble rubber coated crossbar cover protects paint and finishesExtra thick moulded end caps protects against bumps and hitsShackle dimensions: 115mm x 230mm x 13mm (W x H x Diameter)Cable dimension: 120cm x 10mm Shackle Dimensions: 115mm x 230mm (W x H x Diam) (4.53" x 9.06") x 13mm (0.51") D Cable Dimensions: 120cm x 10mm (4 x 0.39") Additional Features: Snap Lock Quick Release multiposition mounting bracket