Quick Summary
The Kryptonite Keeper 585 is a bicycle chain lock with four-sided, 5 mm hardened carbon-steel links, a hardened locking pin and a wafer-style cylinder. It comes with two keys and has a listed security rating of 4/10 on Kryptonite’s scale, described as moderate.
Key Details
| Detail | Product information and buyer relevance |
|---|---|
| Model | Keeper 585, part number 004912. |
| Chain | Four-sided, 5 mm hardened carbon-steel links. |
| Lock mechanism | A hardened locking pin and wafer-style cylinder. |
| Covering | A weather-resistant nylon sleeve and rubber coating are described as protective features for surfaces. |
| Security rating | 4/10 on Kryptonite’s scale, described as moderate security. A rating is not a guarantee against theft. |
| Warranty and programs | A limited lifetime warranty and eligibility for Kryptonite’s Anti-Theft Protection Offer and KeySafe key replacement program are listed. Check applicable terms and registration requirements. |
What to Compare Before Buying
Consider the locking conditions where the bike will be secured and whether this lock’s stated security rating fits your needs. No rating guarantees protection in every situation.
Compatibility, Size and Fit
Check that the chain has enough usable reach for your bike and the fixed locking point you plan to use. Consider the route around both before choosing, since a lock’s reach may not suit every setup.
What Is Included
The listing identifies one chain lock and two keys. Check that the selected configuration includes both keys.
Before You Decide
Confirm the exact model, the chain’s usable reach for your locking setup, and whether the 4/10 rating suits your needs. Review the terms for any warranty or registration-based program.








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