Kryptonite Fahgettaboudit Chain Lock The Kryptonite Fahgettaboudit Chain Lock is the lock to bring along when it's a guarantee your bike will be stolen otherwise. Speaking of otherwise, why else would you carry a 15+ pound lock? How about Kryptonite's $3, 750 anti- theft protection offer, which is free for one year with registration? How about six-sided chain links made of 3t manganese steel? How about a 15mm hardened MAX-Performance steel shackle, or the hardened double deadbolt design fighting off the twist attacks? Your purchase includes the lock and three stainless keys. Two are standard keys, one is lighted. No lock is invincible, this included. But there aren't many, if any, that are better. Kryptonite Fahgettaboudit Chain Lock Specifications: Advertised weight: 15. 25 pounds Diameter: 14mm Lock style: Padlock | Kryptonite | Fahgettaboudit Chain Lock | Black | 3. 25 Feet