Titanker Bike Chain Lock with Keys, 3.3 Feet Security Heavy Duty Anti-Theft Bicycle Chain Locks for Bike, Motorcycle, Bicycle, Door, Gate, Fence, Grill (6mm, 8mm, 10mm Thick Chain)
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30-day refund/replacement
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Availability:
Only 1 left in stock, order soon!
Arrives
Wednesday, Jun 11
Color: Black-10mm Chain
Features
- Secure & Portable: The key can only be pulled out after the bike chain lock is locked, which prevents the key from being lost. Titanker bike lock comes with 2 keys. You can take one of the keys to use in daily life, and you can leave another key at home in case you accidentally lose one
- Heavy Duty & High Quality: With 10mm thicker security heavy-duty chain links, our bike lock is made of heavy-duty steel known for its cut-resistance. Lubricate the bike chain lock hole and keyhole regularly, this will prolong the lock's service time
- Protective Cloth Sleeve & Dust Cover: Chain is enclosed in protective cloth sleeve, which effectively protects the bike lock chain from rusting and scratching
- Safety Tips: Never leave your bike locked outside for long periods of time. Especially in high crime areas. No bicycle lock is 100% secure
Brand: Titanker
Special Feature: Anti-theft,Heavy Duty,Portable
Lock Type: Key Lock
Item dimensions L x W x H: 11.46 x 5.87 x 2.2 inches
Material: Alloy Steel
Brand: Titanker
Special Feature: Anti-theft,Heavy Duty,Portable
Lock Type: Key Lock
Item dimensions L x W x H: 11.46 x 5.87 x 2.2 inches
Material: Alloy Steel
Recommended Uses For Product: Security
Style: Black-10mm Chain-3.3Feet
Color: Black-10mm Chain
Number of Pieces: 1
Finish Type: Cloth Sleeve
Included Components: 1 x Titanker Chain Bike Lock, 2 x Keys
Controller Type: Hand Control
Shape: Round
Item Weight: 4.4 Pounds
Control Method: Touch
Manufacturer: Titanker
Item Package Dimensions L x W x H: 8.07 x 5.87 x 2.99 inches
Package Weight: 2.14 Kilograms
Item Dimensions LxWxH: 11.46 x 5.87 x 2.2 inches
Brand Name: Titanker
Part Number: TK-03-12
Size: 10mm
Date First Available: June 11, 2019
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Jun 11
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Color: Black-8mm Chain
The bike lock is excellent and long enough for my needs. I really like the feature that allows you to hide the keyhole for extra security. The material covering the chain feels thick and durable—it hasn’t torn yet. The brand name remains visible along the chain, and the key turns smoothly without getting stuck. I also appreciate that the key cannot be removed unless the lock is fully secured, which prevents accidental unlocking. Unfortunately, the plastic part under the connector broke when I accidentally dropped it. However, this doesn’t affect the lock’s overall performance.
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Reviewed in the United States on March 12, 2025 by Leonardo Huauya
Color: Black-8mm Chain
Looks and feels solid! The quality certainly seems to be there, very easy to install, fits easily around the bike frame and bike pole/rack. If taken care of, I anticipate significant rust resistance. The cloth material seems to be durable; cannot say much about color vibrancy of the cloth part, seeing as a I ordered black. Note: it is a chain, so it is a little heavy.
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Reviewed in the United States on February 20, 2025 by Amazoners_Anonymous
Color: Black-10mm Chain
EDIT: I would still buy, It’s been over 6 months now (EDIT: about 6+ months in and the nylon chain cover has become detached from one end of the chain. It’s not a huge deal or very noticeable at all and can be glued back in easily. Highly recommend for people who don’t want to #1 overpay for a lock, 2 you’re in a large city or on campus and NEED a warranty if you’re parking in unsafe areas often Kryptonite has warranties but I don’t live in a large city and don’t park my bike on university campuses or downtown often and have faith in this chain. I would maybe bring extra locks if I did go downtown just in case for front wheel but the 12” chains are an excelllllent size for preventing thieves from snapping the lock as easily for a great price. Also I love the key feature. It works great and has a backup. Unless you come across a lock picking expert or someone with a giant saw you’re pretty safe imo. The locking mechanism is great and so simple to use. It unlocks very easily with just a twist. The lock cover is great for dirt and debris but I usually wear my lock cover easily around my shoulder or waist or sometimes my bicycle it’s not too heavy and a perfect length to lock my frame and rear tire. It’s also quite thick to deter any thieves, encased in nylon which prevents any scratching, and another deterrent (edit: one side of the nylon has detached but not the end of the world). I would definitely buy this again. It’s not too big take Carrie and not too small to not deter a criminal. It’s perfect compared to the insane price of some locks. Some of those lock costs 10-15% of my bicycle. I also recommend buying an apple AirTag hidden, cheaper combo than many kryptonite locks. 80-90% of bicycles are never recovered.
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Reviewed in the United States on December 12, 2023 by Dylan
Color: Black-8mm Chain
Bad quality lock, the locking/unlocking mechanism is not consistent. I've had the lock for around 8 months now and it's begun fully failing. It has not been working as intended for most of its use so far. Edit: The replacement lock has arrived and it works great, just as I remember the original working at first. I hope that it holds up and that the first one was a fluke. I’ll further edit this if the replacement begins to break as well.
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Reviewed in the United States on April 16, 2024 by Amazon Customer
Color: Black-8mm Chain
As I was researching bicycle chains, I was leery because I did not want to chain. That was not flexible and easy to store and use. After much consideration, I bought this chain, and I am extremely pleased with it. It is very easy to store, The fabric on the outside of the chain, makes it very gentle to handle and to use.
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Reviewed in the United States on February 28, 2025 by Barbie Whitt
Color: Black-8mm Chain
greatt for bikes, scooters and all
Reviewed in the United States on April 14, 2025 by Mason Mirza
Color: Black-8mm Chain
Seems like this lock will hold up. I have no issues with the key like some reviews state. That is most likely from user error. When you lock the lock the key comes out.
Reviewed in the United States on March 31, 2025 by Pat
So like, you get two keys, right? Well that's great 'cause now I need more anyway. The quality of the keys are astonishingly terrible. First of all, when I first opened the lock, the key got jammed, which I assumed was a problem with lock mechanism itself. After about 20 minutes of trying to break it free, it opened after I twisted the key out of place with my teeth. Yup, that's right. I twisted the key, the metal part for crying out loud, with my bare teeth. That's so bad bro, like I am still baffled as I think back about when it happened. So if for whatever reason some dude wants to steal your bike, a pair of pliers on the keys is all that is needed for a free new bike (a pretty unconventional way of stealing one, but I mean if the quality is so bad it works, I guess the company is more at fault than anything (why are the keys on the lock in the first place? Well because they got jammed: that's why)). Okay, so that's the key—what about the rest? Well, it's short. Like, really short considering it's a bike chain. My bike is about medium size for an adult, and I struggle securing it at the bike stops they have at your local supermarket. The chain literally only wraps in and out the wheel, which again, makes it super easy to steal, defeating the purpose of having a bike chain in the first place (So that's a no-no for anyone with a really large bike out there). Then it's heavy, which I suppose is a good thing, except that the textile that surrounds the actual chain gets weighed down enough to get caught in the bike chain mechanism and lunge me forward into the concrete as I'm speeding downhill on a suburban street (and in case you wanted to know, yes, it did hurt). Finally, I wasn't actually gonna complain about this, but given that there's barely anything positive about the lock I'll become fixated about this too: the lock itself is not the safest lock out there. Like I haven't tested this out (because I mean, I want to at least have a functional bike lock with me), but I'm more than sure that a few good impacts with a hammer or even the concrete ground will break the lock away from the chain. Everything but the lock itself is heavy duty, (the lock is made with probably the cheapest plastic known to man), which absolutely annihilates the purpose of attempting to make the chain heavy duty in the first place. You think a robber is gonna rob your bike by cutting the chain with his handy, portable, 6-ton plasma cutter? No, he's gonna do so by smashing your lock open, which he can absolutely do with this lock. Overall, It could have been worse. It does look nice, which is like the only positive thing I can say about it, so it's got that going for it
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Reviewed in the United States on December 28, 2020 by Reymond Delgado