Kryptonite Kryptoflex 1018 Key Cable

4.5 stars
 (2 Reviews)
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The KryptoFlex 1018 Key Cable is a 3/8-inch braided steel cable to be used in low-crime areas or as a secondary security measure. An advanced cylinder provides protection from picking and a sliding weather guard protects the cylinder from dirt, water and road grime. Plus, the lock head rotates so lock-up and removal are a snap. The KryptoFlex 1018 Key Cable is 3/8-inch x 6-feet.

Features & Info

Best locking method

Proper locking using a cable plus a U-Lock.
Place the U-Lock shackle around the pole, your bike frame and through your rear wheel. Loop a cable around your front wheel, bike frame, and onto your U-Lock shackle.

Consumer Reviews

4.5 stars

(2 reviews)

100% of respondents would recommend this to a friend.


  • Durable  (2)
  • Easy to use  (2)
  • Ultra strong  (2)
  • Lightweight 
  • Versatile 


  • Hard to carry 

Best Uses

  • City bikes  (2)
  • Mountain bikes  (2)
  • Not just bikes 
  • Road bikes 

Jun 07, 2009

Strong but Heavy

Ultra Strong, Easy to Use, Versatile, Durable
Hard to Carry
Best Uses:
Road Bikes, City Bikes, Not Just Bikes, Mountain Bikes
I commute to work - 11 miles each way. I don't want to carry any extra weight. I love this lock. I feel my bike is securely locked and I don't have to have my glasses with me to try a combination lock. My only (minor) complaint is that this is one heavy lock. I wouldn't consider carrying this one with me. I leave it in the parking garage at work and I am just waiting for IT to get lifted (although the custodians have given me a pretty good hiding place for it!) Great price for good security.
by Hurdland from Newport, Vermont

Aug 12, 2008

Best Lock!

Ultra Strong, Lightweight, Easy to Use, Durable
Best Uses:
Mountain Bikes, City Bikes
I bike to work and have to lock my bike. When I get off work late at night, its nice not having to fool with a combonation. I use this starting at the back wheel and then around a pole then around the middle of the bike and then finish with my front wheel. It comes with two keys that you can register and can be replaced for free. You can also mount it to your bike, which I don't use. If your going to use this product, you also need to consider buy a seat lock, for those of you who have removealbe seats. I didn't not know this, until I was told that others steal bike seats. So they both work together and are very easy to use!
by Akronite from Akron, Ohio