Kryptonite Keeper 712 Combo Chain

92/100
BikeRide Score
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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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Facts

Lock Type
Brand
Weight
4.5 lb
Diameter / Thickness
7 mm
Length
47 Inches
Color
Material
Manganese Steel

Expert Reviews

0/100 based on 0 rated expert reviews

User Ratings

92/100 based on 480 ratings
  • 5 star
    76%
  • 4 star
    16%
  • 3 star
    4%
  • 2 star
    1%
  • 1 star
    4%

Bike Lock Comparison

Kryptonite Keeper 712 Combo Chain in comparison to averages
Kryptonite Keeper 712 Combo Chain
92

Forum Discussions

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