Kryptonite Keeper 790 Combo Bike Chain Lock - Secure 3 ft Chain

Our review of the Kryptonite Keeper 790 Combo finds it best suited for cyclists who need a reliable deterrent for short stops in urban settings or overnight in low-risk rural areas. The single biggest reason to buy is the integrated end-link locking point combined with four-sided 3T manganese steel links, which together provide a sturdier hold than many cable locks while remaining simple to use. The included 4-digit resettable combination and patent-pending lock design make it a practical, keyless option for everyday riders who prioritize ease of use and visible security.

Key Features

• End-link locking point: Provides extensive holding power and a more secure anchor than typical chain ends, reducing leverage points for attacks.
• Four-sided 3T manganese links: The four-sided link profile increases resistance to common pry attempts and improves overall chain rigidity.
• 4-digit resettable combination: Lets the rider choose from over 10,000 codes and eliminates the need to carry a key, simplifying daily use.
• Combo Safe Program protection: Adds an extra layer of assurance for the combination mechanism and helps guard against accidental resets.
• Universal fit: The 3 ft length and flexible chain make it easy to secure a bike to a range of racks, posts, and fixed objects.

Who It's For

The Kryptonite Keeper 790 is aimed at commuters and city riders who need a compact, visible deterrent for short stops and errands. Its combination lock and moderate 3 ft length make it convenient for leaving a bike at racks or short-term urban parking where quick, casual theft attempts are the primary concern.

Riders who need top-tier protection for long-term street parking in high-crime areas or those who require a very long reach should look elsewhere; the lock is rated around mid-level security and some customers report concerns about cutability and the chain length being short for certain uses.

Pros & Cons

Pros

• Good visible deterrent thanks to sturdy, four-sided manganese steel links and an integrated end-link lock point.
• Easy to use 4-digit resettable combination with over 10,000 possible codes and a Combo Safe Program for protection.
• Compact 3 ft length useful for commuters and riders who prefer a keyless solution that fits many locks and racks.

Cons

• Rated mid-level security and reported to be relatively easy to cut with the right tools, so it is not intended for high-risk locations.
• Some users find the weight and the 3 ft length limiting for certain locking scenarios or when longer reach is needed.

Specifications

Brand	Kryptonite
Model	Keeper 790 Combo
Chain Length	3 ft
Link Material	Four-sided 3T manganese steel
Lock Type	4-digit resettable combination
Fit Type	Universal Fit
Security Rating	Rated 5 of 10 (mid-level)

Our Verdict

The Kryptonite Keeper 790 Combo is a practical, keyless chain lock that offers solid day-to-day protection for commuters and casual riders. Its combination lock and four-sided manganese links deliver a visible, convenient deterrent at good value, but those needing maximum cut resistance or greater length should consider higher-security or longer alternatives.

Frequently Asked Questions

Is the combination easy to reset?
Yes, the 4-digit resettable combination is straightforward to change and the Combo Safe Program protects against accidental resets.

Will this stop bolt cutters?
No lock is invulnerable; customers report it can be cut with the right tools, so it is best used as a deterrent for low- to mid-risk situations.

Is the 3 ft length enough for most racks?
For many standard racks and posts it is sufficient, but riders who need to secure two wheels or reach distant anchor points may find it too short.