Kryptonite Keeper 785 Bike Chain Lock, 2.8 Feet Long Heavy Duty Anti-Theft Bicycle Chain Lock with Keys for Bike, Motorcycle…
Kryptonite
Best for
Best heavy chain
Amazon rating
Amazon aggregate, one input among many in the Verdict Score
Based on 1 trusted source
Current price
$38.19
Updated May 17, 2026 · 1 min read
Sources behind this verdict
10 reviewers weighted by source trust
The consensus
What reviewers found
Synthesized across the trust-weighted source mix below.
Across the reviewers we read, the Kryptonite Keeper 785 is the consensus pick when a chain lock is the right form factor, but it earns that ranking with caveats. outdoorgearlab.com's testing describes it as occupying a solid middle ground with excellent versatility at a nice price point but not exceptional security, and somewhat bulky. The verified-purchase signal is unusually large for the category, more than 11,000 Amazon ratings at 4.6 stars, which corroborates durability and everyday usability.
What reviewers liked
- High-trust outdoorgearlab.com endorsement as a versatile value pick
- Massive verified-purchase base (11,000+ Amazon reviews at 4.6) confirms day-to-day reliability
- Chain form factor wraps around odd-shaped racks and street furniture a U-lock can't
- Weather-resistant nylon sleeve prevents bike-frame scratches, per Amazon product detail
Where it falls short
- outdoorgearlab.com explicitly flags security as middling, not exceptional
- Only a Sold Secure Bronze-equivalent rating according to enthusiast coverage
- Heavier and bulkier than a comparable U-lock for similar real-world security
- r/whichbike commenters actively recommend a U-lock instead for higher-value bikes
Across the reviewers we read, the Kryptonite Keeper 785 is the consensus pick when a chain lock is the right form factor, but it earns that ranking with caveats. outdoorgearlab.com's testing describes it as occupying a solid middle ground with excellent versatility at a nice price point but not exceptional security, and somewhat bulky. The verified-purchase signal is unusually large for the category, more than 11,000 Amazon ratings at 4.6 stars, which corroborates durability and everyday usability.
Specialist subreddits are mixed in a useful way. r/Lectricxp and r/bicycling commenters use the 785 happily for utility bikes and errands, while an r/whichbike thread explicitly recommends a Kryptonite U-lock instead for higher-value bikes. The chain's 7mm links and Sold Secure Bronze-tier rating, surfaced in enthusiast-site coverage, are appropriate for moderate-risk use rather than dense-urban overnight parking.
The synthesis is that this is the right chain if you need the flexibility a chain provides, locking around awkward street furniture, securing a motorcycle or scooter, threading through multiple bikes, but riders looking for chain-grade security in a high-theft area should be looking at heavier hardened chains in the New York or Fahgettaboudit families instead.
- Heavy-Duty Chain
- Made from 7mm manganese steel with four-sided links, this bike lock provides maximum resistance against cutting and leverage attacks
- Patented Locking System
- Features a high-security disc-style cylinder, resistant to picking and drilling, and a patented end link design that securely connects the chain to a hardened deadbolt, eliminating weak points
- Protective Features
- Durable rubber coating around helps prevent scratching and wear and tear on your bike. Durable WEATHER-RESISTANT nylon sleeve prevents scratches
- Durable Design
- Keeper 785 Integrated Chain extends up to 85cm (33.5 in) in circumference, crafted from 7mm hardened steel links. Heavy-duty bike lock weighs 1.59kg (3.50 lbs). Includes two keys and rated 5/10 for moderate security on our scale.
- Atpo & Keysafe Program Eligible
- Register to qualify for Kryptonite's Anti-Theft Protection Offer and KeySafe key replacement service
- Lifetime Warranty And Support
- Kryptonite offers a limited lifetime warranty for peace of mind. If you experience any issues, contact our Customer Experience team, and we will resolve it quickly. We are committed to your satisfaction and product quality
is kryptonite keeper 785 lock a good lock for anti-theft ? I want to start taking my bike to work and start traveling long distances but the ...
Best long bike chain locks ... From what I understand it puts up a decent defense against bolt cutters for those fast theft attempts.
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