Kryptonite KryptoLok Series 2 Standard Heavy Duty Bicycle U Lock with 4ft Flex Bike Cable Replaced with new and improved design in 2017 - check out our New U lock, it will send any bike thief running! 13mm hardenedMAX-PERFORMANCE STEEL SHACKLEresists cutting and leverage attacks Includes4 KRYPTOFLEXDOUBLE LOOP CABLEfor securing front wheel or accessories ReinforcedHARDENED CROSS BAR DESIGNprovides increased protection HIGH SECURITY DISC-STYLE CYLINDER Center keyway defends against leverage attacks ANTI-RATTLEBUMPERSreduce noise during transport Rotating dustcover protects cylinder IncludesNEW TRANSIT FLEXFRAME-Utransportation system which allows for versatile carrying Protective vinyl coating