Best Bike Lock
2026
Kryptonite Keeper 785 Bike Chain Lock
Lightweight security, heavyweight protection
Score 68/100 $47.95
Why this one
The Kryptonite Keeper 785 combines expert-praised ease of use with impressive versatility at an accessible price point. Its lightweight design and strong security make it ideal for low to medium-risk areas, delivering solid anti-theft protection without the bulk of heavier alternatives.
Pros
- ✓ Excellent anti-theft security with heavy-duty construction
- ✓ Good value for price compared to premium bike locks
- ✓ Versatile 2.8-foot length works for bikes, motorcycles, gates, and doors
- ✓ <cite index="12-16,12-17,12-21,12-22">Quick and easy to use that fits almost everywhere; fairly tough to cut and impervious to bolt cutters, cable cutters, and hacksaws</cite>
- ✓ <cite index="11-19,11-20">Amongst the lightest chain locks at just 3.1 pounds</cite>
Cons
- ✗ Keys can become difficult to turn or break with age
- ✗ Surface rust can develop despite protective coating in wet climates
- ✗ <cite index="11-15,11-18">7mm links can be cut much faster than heavier chains; slightly less secure than a standard U-lock</cite>
- ✗ <cite index="31-16">Requires 14 seconds with an angle grinder to cut through</cite>
Our methodology
Based on AI analysis of 11,127 Amazon reviews, Reddit discussions, and expert reviews. Scored 68/100.
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