Secure your bike with the Kryptonite Evolution Series 4 Integrated Chain Lock. Its Sold Secure Gold standard means unmatched protection for your ride. With its new patent-pending Evolution series 4 lock, pick and drill resistance is significantly enhanced, making it a formidable challenge for any thief.Key Features and Benefits:10mm six-sided chain links made from 3T Manganese Steel: This robust chain design significantly reduces the risk of cutting attacks, ensuring your bike remains where you left it.Patent-pending End Link Design: By securing the chain to a hardened deadbolt, this feature effectively eliminates any weak points, vastly improving resistance to tampering and force.Durable weather-resistant nylon sleeve: Not only does this sleeve protect your bike from potential scratches, but it also shields the chain from the elements, prolonging its lifespan.Patented reinforced Oval Crossbar Lock Head: Offers enhanced security by resisting leverage attacks, making it extremely diffic