From Kryptonite's website:
KRYPTONITE OFFERS FREE PRODUCT EXCHANGES TO ALL CURRENT OWNERS OF KRYPTONITE TUBULAR CYLINDER LOCKS
If you currently own a Kryptonite tubular cylinder lock and are concerned about the security of this lock, Kryptonite will exchange this lock for you with a comparable non-tubular cylinder lock.
Kryptonite will exchange the following co-branded tubular cylinder locks with a comparable non-tubular cylinder lock. These co-branded products include: Giant by Kryptonite (USA product only), KHS Ultra Cycle by Kryptonite, Raleigh products by Kryptonite (Avenir U-Locks, Cycle Pro U-Locks, Diamondback U-Locks) (USA product only) and Trek by Kryptonite (Ali Baba and Sherlock U-Locks, Dreadlock Armored Cable).
Kryptonite will exchange the following Harley-Davidson branded tubular cylinder locks manufactured by Kryptonite with a comparable non-tubular cylinder lock: Harley-Davidson Brake Disc Lock and Harley-Davidson Maximum Security Chain and Padlock. (Please note that the lock applies to the padlock only. The chain does not need to be exchanged).
To participate in the exchange program, please complete and submit the lock exchange form.
We expect locks to begin shipping in mid-October.
Consumers: If you still have questions after reading this information, please contact our special Lock Exchange Program number, 1-800-240-0802. Thank you.