{"product_id":"kryptonite-keeper-bike-u-lock-12mm-hardened-shackle-secure-urban","title":"Kryptonite Keeper Bike U-Lock 12mm Hardened Shackle - Secure Urban","description":"\u003cp\u003eOur review of the Kryptonite Keeper Bike U-Lock finds it to be a solid everyday security option for riders who need reasonable protection without a heavy-duty weight penalty. The single biggest reason to buy is the 12mm hardened steel shackle with a double deadbolt anti-rotation design, which gives confident resistance to common attacks like bolt cutters and twisting leverage. For quick stops in the city, errands in the suburbs, or all-day parking in rural areas, the Keeper 12 Long Shackle balances portability, convenience and dependable anti-theft features.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e12mm Hardened Steel Shackle:\u003c\/strong\u003e The thick shackle resists hand tools and bolt cutters for better baseline protection during short to moderate stops.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDouble Deadbolt Design:\u003c\/strong\u003e Anti-rotation locking keeps the shackle stable and reduces the chance of a forced twist or pry attack succeeding.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisc-Style Cylinder:\u003c\/strong\u003e A protected center keyway design that offers pick and drill resistance for more secure key operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eErgonomic Stainless Keys:\u003c\/strong\u003e Two included keys have an ergonomic shape that reduces torque on the key and helps prevent bending or breakage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSide Mount Snap-In Bracket:\u003c\/strong\u003e The included bracket makes transporting the U-lock on a frame convenient and keeps the lock accessible for everyday use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupport Programs:\u003c\/strong\u003e Key Safe replacement for the first two keys and a lifetime anti-theft reimbursement program add long-term value and peace of mind.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe Keeper 12 Long Shackle is best for commuters, city riders and suburban cyclists who need a dependable lock for short to medium duration stops. Its balance of weight and security suits those who want better protection than a cable lock without carrying an overly heavy chain or large U-lock.\u003c\/p\u003e\n\u003cp\u003eRiders who require the highest level of security for long urban exposures, or those in high-crime areas seeking maximum resistance to professional thieves, should consider heavier, higher-rated options instead. This model is focused on practical anti-theft measures for everyday use rather than maximum commercial-grade security.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSturdy 12mm hardened steel shackle provides solid resistance to common cutting tools.\u003c\/li\u003e\n\u003cli\u003eProtected disc-style cylinder and double deadbolt reduce the risk of picking and leverage attacks.\u003c\/li\u003e\n\u003cli\u003eIncludes two ergonomic stainless keys and a convenient frame-mounted snap-in bracket for transport.\u003c\/li\u003e\n\u003cli\u003eSupport programs like Key Safe and a lifetime anti-theft offer add useful long-term protection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRated mid-level on the security scale, so it is not intended as the ultimate deterrent against determined, professional thieves.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eKryptonite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShackle Thickness\u003c\/td\u003e\n\u003ctd\u003e12mm hardened steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterior Locking Dimensions\u003c\/td\u003e\n\u003ctd\u003e4 in x 10 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded Keys\u003c\/td\u003e\n\u003ctd\u003eTwo stainless steel ergonomic keys\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003ePatented Side Mount Snap-In Bracket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSecurity Programs\u003c\/td\u003e\n\u003ctd\u003eKey Safe key replacement and lifetime anti-theft reimbursement up to $500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Kryptonite Keeper 12 Long Shackle is a practical, good-value U-lock for everyday riders who need reliable protection for short to medium stops. It combines a hardened steel shackle, protected cylinder and convenient mounting with useful support programs, making it a sensible choice for commuters and casual cyclists who want solid security without carrying an oversized lock.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the lock come with keys?\u003c\/strong\u003e\u003cbr\u003eThe lock includes two stainless steel ergonomic keys, and Kryptonite will ship your first two replacement keys through the Key Safe program if you lose them.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat sized lock opening does it have?\u003c\/strong\u003e\u003cbr\u003eThe interior locking dimensions are approximately 4 in x 10 in, suitable for securing frame and wheel to many racks and posts.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs there any theft reimbursement?\u003c\/strong\u003e\u003cbr\u003eThe product includes an anti-theft protection offer with lifetime coverage and reimbursement up to $500 under the specified program.\u003c\/p\u003e","brand":"Kryptonite","offers":[{"title":"Default Title","offer_id":48197430903003,"sku":"B07QS4YTL4","price":48.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/614EXQx9UnL.__AC_SX300_SY300_QL70_ML2.jpg?v=1770320424","url":"https:\/\/gearmusthave.com\/products\/kryptonite-keeper-bike-u-lock-12mm-hardened-shackle-secure-urban","provider":"GearMustHave","version":"1.0","type":"link"}