Kryptonite Kryptolok Standard 12mm U Lock Combo Bicycle Lock with Side Mount Snap in Bracket From the manufacturer Rated 6 10 on Kryptonite s security scale Moderate security lock Eligible for the optional Anti theft Protection KryptoLok Combo U Lock Moderate Security 12mm hardened high grade carbon alloy steel shackle. 4 digit resettable combination protected by rotating dust cover. High security bent foot design. Dimensions 4 x 8 (10.2cm x 20.3cm) Weight 2.30 lbs (1.04 kg s) Shackle Size 12.7mm performance steel shackle with new hardened double deadbolts to engage both ends increasing holding power. Anti theft Protection Register your product online to activate the optional Anti theft Protection. In the unlikely event the product is defeated when used properly Kryptonite will pay out up to a certain value depending on the security value of the product. Visit our official website for further information. T&C s apply. Combo Safe Program Register your combination online and Kryptonite will be able to remind you what it is should you forget. Resettable Combination 4 digit resettable combination protected by rotating dust cover.