Kryptonite Evolution Series 4 Integrated Chain Lock

The Evolution Series 4 is substantial, weighing in at approximately 8.5 pounds. While it is not the lightest option on the market, the weight is a direct result of the heavy-duty manganese steel links, making it a solid choice for commuters who prioritize security over portability.

No, the chain is encased in a durable, weather-resistant nylon sleeve. This protective cover prevents the steel links from making direct contact with your frame, keeping your bike's finish intact.

To keep the mechanism operating smoothly, it is a good practice to lubricate the cylinder once or twice a year with a silicone-based spray. This prevents debris buildup and ensures the lock remains resistant to picking and drilling over time.

Kryptonite offers a key replacement program for this lock. You should register your key number on their website immediately after purchase, which allows them to send you replacement keys if you misplace your originals.

Yes, the included LED key features a high-intensity bulb that provides ample light to locate the keyhole in dark environments. It is a practical feature that saves you from fumbling with your lock at night.

The anti-theft protection offer is a program where Kryptonite may reimburse you for your insurance deductible if your bike is stolen due to the opening or breaking of the lock. You must register your lock on the Kryptonite website within 30 days of purchase to be eligible.