Giant's SureLock Tough 1 lock incorporates the strength of a heavy-duty chain with the simplicity and portability of a coiled cable lock. Square steel chain links are tough as can be, and they're coated in a durable nylon cover that protects your bike's finish. The double bolt lock mechanism resists picks and drills so you can lock your bike up without worry.

- Light, colorful and flexible silicon cover prevents scratches - 4-digit set your own combination - Simple and easy to use - Available in five colors

You can use Giant's SureLock Flex Cable with a padlock (sold separately) to secure your bike and, if you already own a U-Lock, you can use the cable for additional security by passing it through your bike's wheels as you lock your bike. Other options include securing bikes to car racks, locking up extra wheels at races, and more. The possibilities are endless.