When it comes to disk locks, there are several robust options available. Let’s explore a few of the strongest ones: Oxford Boss Alarmed Disc Lock: This versatile disc lock not only secures your motorcycle but also allows you to pass a chain through it. The 12mm hardened steel shackle provides solid protection, and the alarm feature adds an extra layer of security. When lining up the red part of the shackle, the alarm activates, making it clearly visible to potential thieves. Abus Granit Sledg 77: Engineered in Germany, this lock boasts serious security. Its 13mm locking bolt slides out for easy fitment to your bike’s brake disc. The solid body, coated with rubber, protects your bike. At 780g, it’s a substantial deterrent to thieves. Xena X1-Y Disc Lock: If you’re on a budget, consider this option. It features a concealed 6mm pin and provides decent security. While not unbeatable, it serves as a visual deterrent to opportunistic thieves. Oxford HD Max Disc Lock: Another affordable choice, this mini D-type lock has a beefy 12.7mm shackle. Even a basic disc lock like this is better than leaving your bike completely unlocked.