Kryptonite Evolution 1090 Bike Chain Lock, 3 Feet Long 10mm Steel Maximum Security Anti-Theft Chain with Keys, Sold Secure Gold…
Kryptonite · 4 more picks →
Best for
Best heavy chain
Amazon rating
Amazon aggregate, one input among many in the Verdict Score
Based on 2 trusted sources
Current price
$76.61
Updated Jun 27, 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.
Among chain locks, the Kryptonite Evolution 1090 is the one reviewers point to for serious, flexible security. It's a Sold Secure Gold-rated 10mm hardened chain, and thebestbikelock.com describes it as a genuinely strong lock for high-risk circumstances sitting toward the top of the Gold rating, while noting it isn't unbreakable. r/cycling and r/ebikes commenters who own it praise the ability to lock around objects a U-lock can't reach, and to secure multiple bikes when riding with friends.
What reviewers liked
- Sold Secure Gold-rated 10mm hardened chain
- Wraps around objects U-locks can't reach (r/cycling, r/ebikes)
- Can secure multiple bikes at once
- 4.7-star average across 5,293 verified-purchase reviews
Where it falls short
- Very heavy, the dominant complaint across r/ebikes and r/FixedGearBicycle
- Cannot be easily mounted on the bike for transport
- No direct high-trust lab destruction test on this exact model in our data
- Still vulnerable to angle grinders
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Among chain locks, the Kryptonite Evolution 1090 is the one reviewers point to for serious, flexible security. It's a Sold Secure Gold-rated 10mm hardened chain, and thebestbikelock.com describes it as a genuinely strong lock for high-risk circumstances sitting toward the top of the Gold rating, while noting it isn't unbreakable. r/cycling and r/ebikes commenters who own it praise the ability to lock around objects a U-lock can't reach, and to secure multiple bikes when riding with friends.
The universal complaint is weight. r/ebikes users call it 'heavy AF' and note it can't be easily mounted on the bike for transport, and an r/FixedGearBicycle owner admitted theirs is too heavy to bother carrying. That makes it best suited to e-bikes, stationary security, or riders who don't mind a backpack-borne chain.
The synthesis: high security and real versatility, undercut by portability. Reviewers consistently rate the locking mechanism and chain links highly, but tell shoppers to be honest about whether they'll actually carry the weight day to day.
- Heavy‑Duty Anti‑Theft Bike Chain Lock
- Built with 10 mm six‑sided 3T manganese steel chain links and a patented reinforced oval crossbar lock head, this heavy‑duty bike chain lock provides massive resistance against cutting and leverage attacks, making it ideal for city bikes, e‑bikes, scooters, and motorcycles
- Sold Secure Gold Rated Security
- Certified by Sold Secure and rated an 8/10 on Kryptonite’s internal security scale, this lock meets Gold‑level standards for resistance against advanced theft methods. Combined with a pick‑resistant disc‑style cylinder, it is perfectly suited for high‑risk urban areas, university campuses, and overnight parking
- 3‑Ft (90 Cm) High‑Security Chain Design
- The Kryptonite Evolution 1090 features a 3‑ft (approx. 90 cm / 35.5 in) length, offering the perfect balance of secure locking reach for thicker poles and easy portability; total lock weight is approx. 6.10 lbs (2.77 kg)
- Protective Nylon Sleeve & Dust Cover
- Includes a durable, weather‑resistant nylon sleeve to help protect your bike frame from scratches and paint damage, plus a sliding dust cover that helps shield the lock cylinder from moisture, dirt, and debris to extend its lifespan
- Versatile Locking With 3 Keys
- Ideal for securing bicycles, e‑bikes, and outdoor gear at work, school, or around town. It includes 3 durable stainless steel keys, ensuring you always have a reliable backup on hand when you need it
- Anti‑Theft Protection & Lifetime Warranty
- Eligible for Kryptonite’s Anti‑Theft Protection Offer (ATPO) with up to $3,000 in coverage for registered locks. Kryptonite also offers a limited lifetime warranty and dedicated Customer Experience support, ensuring total peace of mind and product quality
heavy AF but great to be able to lock around objects a u-lock won't. PLUS, if you go biking with friends you can probably use it to lock many ...
Kryptonite makes a chain lock that uses that same chain, but has a better-designed locking mechanism.
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“Kryptonite Chain Lock Overview” · YouTube
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