FREE SHIPPING With $50 minimum purchase.


      Kryptonite KryptoFlex 1218 Combo Cable Lock

      Kryptonite KryptoFlex 1218 combo cable lock offers added security for your bike or accessories and uses a resettable combo for key-free ease of use.
      • $24.95

      Item # 833101

      REI Members get back an estimated $2.50 on this item as part of their annual member refund.
      Product size and color

      Orders of $50 or more ship for free. Learn more

      Orders of $50 or more ship for free. Learn more

      • details
      • specs
      • reviews
      • q & a
      • Flexible 12mm braided-steel cable provides solid cut-resistance; cable is coated to help protect the finish of your bike frame
      • Don't worry about forgetting your key, thanks to the integrated 4-digit resettable combination lock with indexed number dials for error-free combination setting
      • Includes a versatile mounting bracket and rip-and-stick retention strap for hassle-free transportation
      • Kryptonite rates the Kryptonite KryptoFlex 1218 combo cable lock a 2 on a 10-point system with 1 being simple, deterrent security and 10 being extreme security


      Kryptonite KryptoFlex 1218 Combo Cable Lock

      Specification Description
      Best use Cycling
      Lock style Cable lock
      Lock type Combination lock
      Lock thickness (mm) 12 millimeters
      Material(s) Braided steel
      Dimensions 6 ft. x 1/2 in.
      Mounting Frame
      Weight 1 lb. 10 oz.

      Kryptonite KryptoFlex 1218 Combo Cable Lock

      Loading Ratings & Reviews...

      Rated 1out of5
      by fromIt Won't Unlock This lock simply won't let go even using the factory preset number. Email requests for assistance sent to the Kryptonite web site have gone unanswered to date. I should have read the REI reviews before purchasing.
      Date published: 2014-04-29
      Rated 1out of5
      by fromUrgh Combo set, go! Nope. Tight/tense coiling of cable made it difficult to physically use the lock. And then... Each time I locked/unlocked, the insertion rod got harder and harder to insert and then remove. By the fourth use, the lock refused to come undone at all. Had to buy a hacksaw to get my bike.
      Date published: 2012-04-19
      Rated 1out of5
      by fromFailed early and easily defeated Purchased because I needed a somewhat secure lock for commuter use and I liked the idea of a lock that I didn't have to carry a key for. Worked fine for a while then the lock refused to open. Combination that I set that had worked for weeks (I set it to match my alarm code for work, so it was easier to remember) When I returned to my bike with a dull hacksaw, it took me less than 3 minutes to saw through the cable. Purchased a U lock and a cable to replace this.
      Date published: 2012-08-14
      Rated 2out of5
      by fromOnly for the wheels This lock is sufficient to secure wheels, when used with a more heavy duty lock to secure the frame. But if you use this lock alone on any bike that has any significant value, a thief will easily get past it with some bolt cutters. I know from first hand experience, and I won't be letting that happen again!
      Date published: 2012-12-12
      Rated 1out of5
      by fromLocks and won't let go Should have read the other reviews. Same issue. Set my combination, tested it a couple times and everything seemed ok. Then when I went to actually use it, I could not insert the lock. I set it to my original combination but could not put it in reset mode. The worst part, you can just turn the comniation until you see a clear path in the barrel. This was NOT my combination and I could still not reset it using this number so I assume all locks may have this hidden back door of a combination that works. In any case, stay away!
      Date published: 2012-09-16
      Rated 1out of5
      by fromBad mounting design I purchased this lock for use on my mountain bike. I needed it to mount under my seat on the seat post. I was disappointed to see that the mount was a nylon strap. I torqued it down as titght as it could go and off I went out on the trail. After half a mile of bouncing over roots, the lock was flopping hitting me in the legs. Looks like a good lock but the mount is flimsy. I am talking this one back
      Date published: 2012-11-24
      Rated 1out of5
      by fromI had to steal my bike back I ride to class, grocery store, etc 4-5 days a week. I had been using the lock for 4 months and I had to steal my own bike back because it wouldn't come undone. The part were hard to fit together and pull apart from day one.
      Date published: 2012-12-03
      Rated 1out of5
      by fromDeterrent, just barely This is pretty useless. Theft deterrent only. Fine for an additional lock, but DO NOT use this as your primary. I watched a surveillance video of the guy who stole my bike snip this in less than 10 seconds. Just a warning.
      Date published: 2014-08-01

      Ask a question and have it answered by REI product experts and fellow outdoor enthusiasts. Need immediate assistance? Use Live Help .

      Loading Questions & Answers...