Evolution Series 4 Disc 14mm U-Lock Key 1.8 x 2.1

This amazing U-lock from the Evolution Series 4 Disc is a top-notch choice for bike protection. It comes with a 14mm hardened Max-Performance steel shackle that can resist cutting and leverage attacks. The double deadbolt locking mechanism offers strong holding power, and the high-security disc-style cylinder has reinforced anti-drill and anti-pull protection. A sliding dust cover keeps dirt out. The set includes three keys, one with a high-intensity bulb and a replaceable battery. With an 8/10 security rating and a key safe program, it's perfect for safeguarding your bike. The internal lock size is 1.8 x 2.1 inches (46x53mm), and its primary color is black.

Using this U-lock is easy. First, open the lock with one of the three keys provided. Place the U-shaped part around the bike frame and the fixed object you want to secure it to, then close the lock until it clicks. Make sure it's tightly locked. When using the key with the high-intensity bulb, simply turn it on when you need extra light. For maintenance, keep the lock clean and dry. Wipe off any dirt or debris regularly. You can use a mild lubricant on the keyhole occasionally to ensure smooth operation. Avoid exposing the lock to extreme temperatures or harsh chemicals. If the battery in the key with the bulb runs out, replace it with a new one as soon as possible.