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Your cart is empty.10mm six-sided chain links made from 3T MANGANESE STEEL. Patent-pending END LINK DESIGN secures chain to hardened deadbolt eliminating critical vulnerability. HIGH SECURITY DISC-STYLE CYLINDER is pick and drill resistant. Patented*, reinforced OVAL CROSSBAR LOCK HEAD. SLIDING DUSTCOVER protects and extends cylinder life. 3 STAINLESS LSTEEL KEYS – one LED lighted key with replaceable battery and 2 new, ergonomic ‘I” keys. Durable WEATHER-RESISTANT nylon sleeve prevents scratches. Key Safe Program. Product dimensions: 21.5” (55cm) chain length.Product weight: 4.40 lbs (2.00 kgs).
Allan Smith
Reviewed in the United Kingdom on February 16, 2025
Great size with great security,well built and at a size you can carry about with you.highly reccomend
Ms. Estrada
Reviewed in the United States on December 14, 2024
Excellent product, Haven't had no issues or breaking with my chain - Its awesome for locking up an electric scooter a lock up a bike close to the gate .... Good price for the quality for sure. thank you.would definitely recommend, but not recommended for an over night lock up.
Amanda June Hagarty
Reviewed in the United States on October 27, 2024
I've had this for a while and it gets a little jostles as I ride around. I just noticed the sliding plastic piece that covers the key hole is cracked and broken on both ends. It doesn't seem to have any effect on the lock, but for something advertised as tough and impenetrable, I was a little surprised to see it crack so easily. I've never had anyone steal my bike tho.
andrea
Reviewed in Italy on August 3, 2023
ho comprato questo kriptonite perchè dalle recensioni online l'ho trovato sicuro ed efficace. La serratura a dischi non è scassinabile se non da ladri molto esperti (che sicuramente hanno di meglio da fare che scassinare la mia bici da poco) e non è tagliabile dai tronchesi da fune.Lo preferisco a quelli a "U" perchè è più flessibile, si può arrotolare intorno alla canna per trasportarlo e permette un po`più di flessibilità per attaccarsi a supporti di vario tipo.Unica pecca (ma lo sapevo già) è pesante e più grande di quanto sembri in foto.
NORA75
Reviewed in France on May 6, 2023
Très bonne qualité mais normal pour le prix j'imagine
Dave E
Reviewed in the United States on December 31, 2023
Good, heavy duty lock. A bit heavy to transport, but a small price to pay for added security for an expensive ebike. The 1090 is just barely long enough for my 20" ebike due to the thick frame & fat tires.
Rian H.
Reviewed in the United States on October 30, 2023
We bought this lock for my sons 1200 electric Segway scooter. It locks perfectly and is right to the scooter and lock stand. It’s one of the strongest on the market and it is very secure.MAKE SURE YOU ORDER THE RIGHT SIZE. Small one for scooters.
Raine Gray
Reviewed in Australia on September 3, 2022
I got the smaller size of this chain, not sure why people complain it's too small when it's still about as large as a small~medium ish sized D-lock. Plenty of room to lock around your rear wheel, frame, and a bike rack, with just the tiniest bit of room left over which is perfect as too much extra room allows thieves room to manouvre tools to break the lock. No you won't be able to lock multiple bikes with the small size, but the weight saving to me was worth it.Perfect for my needs, where I only need to occasionally carry the lock with me, but also need as much security as possible as I leave the bike parked in front of work 5 days a week, Mon-Fri. I bring the chain to work on monday morning, leave it behind on the bike rack the rest of the week, and take it home with me Friday evening to minimise chance thieves tamper with it on the weekends, and incase I decide to commute to the shops on weekend.The lock comes with 3 Keys which is more than plenty - I keep the one with the light on my keyfob, the light is an extremely nice touch, easy to unlock at nighttime. I keep another in my locker at work, and another one at home. Registering the keys online was also extremely fast, but I doubt I'll manage to lose all 3 keys across the lifespan of this lock but good to have that peace of mind.I find if you use the lock daily, a couple drops of DRY(teflon or ceramic based) bicycle chain lube into the keyway, maybe once a month or two is plenty to keep the disc detainer style keyway turning smoothly, I've never ever experienced the lock being hard to open as some other reviews have stated. And disc detainers are far more pick-resistant, as basically no thief has the right tools or expertise to tackle this type of keyway.No bike lock is 100% safe but so far, in the past month at least 2 bikes have been stolen from the neighbourhood, yet there have been 0 nicks or cuts on this lock to indicate any of the thieves have even bothered trying to cut it. Also being close to the front of work, I'm only 5 seconds away if I start hearing a disc cutter or dremel and I'm confident it'd take even the best equipped, and extremely brazen thief at LEAST twice, probably ten times that amount of time to cut through this lock. That plus the fact I've scuffed my bike (duct tape/stickers all over the bike frame in multiple spots to cover the brand and model of the bike, keep it dirty, equipped it with cheaper components like tourney or acera altus) should theoretically keep my bike relatively safe from theft. Leave the nice bike at home for weekends and rides after getting home.
Raul
Reviewed in the United States on December 3, 2022
If you need a lock chain then this is the way to go. The kryptonite chain that I bought saved me from inconvenience so many times whenever I had to stop at my college campus. It does have one issue where the key doesn't go through all the slots of the lock and it gets annoying because you have to fumble around with the lock in order to get the key fully set in but aside from that it's a very high quality lock and it has saved me from many attempted thefts.
Adam
Reviewed in the Netherlands on October 8, 2022
I bought this and thought it was a great lock until the lock mechanism became faulty only after 2 months. The key constantly gets stuck in the lock and takes about 10 minutes to get the lock open with some delicate key turning, it’s like trying to crack a safe!Also I can’t find away to return or get a replacement!
George T.
Reviewed in the United States on January 16, 2020
This has one of the highest ratings for Kryptonite's security by and it is a solid beast. I also like how it is chain links making it compack and pliable to pack on the go. Ends are just small enough to fit cable secondary security cables through the tires and seat. Bit the length is not long enough to go through the tire, frame and whatever bike rack you are parking your bike at. If you can get this same one in the next length up, it is worth it.
Reviewer of Stuff
Reviewed in the United States on September 12, 2019
The only issue to speak of is that the key will sometimes not turn fully when locking or unlocking. This mainly is due to not inserting the key past all the discs. Most users are probably not familiar with disc detainers and the idea is you usually have to do some rotating and counter rotating with the key in order to get it through every single disc .Once you do that, it should turn pretty smoothly if the chain isn't being pulled with too much tension.A 10mm hex link chain like this is not something a bike thief is likely to get through discretely. Most only carry cable cutters at best. They'll need power tools for this. Picking this core is going to require both a specialized pick and a somewhat advanced level of skill & experience. This should be more than enough security for most people.I got my 22" version around $50. The price a week later is up to over $70 at the time of writing this. It weighs a little under 5 lbs.I think casual cyclists greatly exaggerate the importance of weight. 5lbs compared to your body weight + the bike, + clothing and gear is maybe 2.5% of total weight? Which doesn't even slow you down by 2.5% if your route is straight and flat, where it's almost entirely about resistances and not gravity or inertia. If you do a lot of climbing, for sure look into something lighter.
Seth Johnson
Reviewed in the United States on November 5, 2018
I've used this bike lock for about a month now. It is very compact and leaves me confident my bike will be there when I return. I like that all metal pieces are covered in rubber or nylon fabric. This protects my bike from scratching.I think the biggest consideration for anyone looking at this product is how heavy it is. This chain is not something you can attach to your bike. You definitely need a backpack or basket to carry this in. It's too short to really loop around your waist.The shortness benefits the use case two ways-- it remains pretty light without sacrificing cut-resistance. It also makes it impossible for an attacker to use a lever within it. I'm not having any of the difficulties others have reported about the key not being accepted.In comparison to the Kryptonite New York mini U-lock, I prefer to carry this one. It feels lighter.
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