Kryptonite Keeper 712 Combo Chain

BikeRide Score

Summary of Reviews

We have read all expert and user reviews on the Kryptonite Keeper 712 Combo Chain. In summary, this is what cyclists think.

10 reasons to buy

  • Keeper 712 Combo owners like that they don’t need to carry or risk losing a key.
  • Many users see this lock as robust.
  • A number of owners have reported attempted and failed theft attempts.
  • It’s a good length to get around most secure objects, bike frames and wheels.
  • Chain links are squared, hardened steel, making them harder to cut through.
  • Users say the Keeper 712 Chain’s combination wheels move easily.
  • Owners appreciate the lock’s material cover, which protects their bike’s frame.
  • By reports, resetting the lock is straightforward.
  • Most users feel that the 712 Combo Chain is a good value at a reasonable price.
  • Users say the 712 Combo Chain remains durable through extensive outdoor use.

5 reasons not to buy

  • This lock is easily cut through by thieves with a portable angle grinder.
  • At 4.5 lb, the Keeper 712 Combo Chain is necessarily weighty.
  • Some users reported their ‘latch’ mechanism broke, rendering their lock useless.
  • Some users see this lock as too short for certain situations.
  • The pin mechanism can fail, leaving owners’ bikes locked without a means of freeing them.

Bottom line

Users note that the Keeper 712 Combo Chain merges the benefits of robust security with key-free convenience. Kryptonite rate this lock at 5/10 for security, so it works best as a secondary addition to a U-Lock. It uses a 7mm-diameter manganese steel chain with squared links. The lock’s sturdiness comes with a 4.5 lb penalty. This may make it too heavy for kids to carry. Some owners experienced latch failure. The Keeper 712 Combo Chain can and has been cut through with a portable angle-grinder.
Where to buy
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Lock Type
4.5 lb
Diameter / Thickness
7 mm
47 Inches
Manganese Steel

Expert Reviews

0/100 based on 0 rated expert reviews

User Ratings

92/100 based on 480 ratings
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Bike Lock Comparison

Kryptonite Keeper 712 Combo Chain in comparison to averages
Kryptonite Keeper 712 Combo Chain

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