- 21/64" steel shackle
- The case, the shackle as well as supporting elements of the locking mechanism are made of special hardened steel
- Extreme large aperture for extra wide tires
- Closing mechanism for easy attachment of accessory to the lock body
- The R (key retaining) version holds the key when the lock is open, the NR (non key retaining) version allows taking the key out of the cylinder