- Brand: TEOOTD
- Special Feature: Heavy Duty,Anti Theft
- Lock Type: Key Lock
- Item Dimensions LxWxH: 48 x 1.5 x 0.39 inches
- Material: Nylon, Stainless Steel, Alloy Steel
- γCut Resistant U LockγOnly 25mm inner diameter is smaller than ordinary u-shaped locks, making it difficult for hydraulic shear to enter the lock and preventing it from being cut easily. Bright-colored lock on your bike could be enough for them to decide to skip your bike and go on to the next one.
- γΟ48mm Steel RingγThere’s a steel ring on one side and a free steel ring. It has many ways to use it. Made of 3T manganese steel materials and heat treatment hardening technology. 10mm chain is thick enough to withstand 10KN tension and 20KN shear force.
- γ4 Unique and Ergonomic KeysγOne for daily use, the others are self-assigned and difficult to duplicate or wear out. The key can only be pulled out after locking to prevent key loss. Made of hard and durable stainless steel, never bend or twist.
- γPure Copper Crescent Lock with CoverγUsed normally after being damaged and hard to replicate. The keyhole is equipped with a cover to make it waterproof and dustproof, which can prevent damage to the keyhole and extend the service life.
- γNylon Sleeve Coverγ23 Chains are wrapped in the protective nylon sleeve cover, protect the chain from rusting and scratching, and also prevent damage to the bike. Secure it with rivets to prevent it from shifting.
- γWarranty+Customer Serviceγ100 days warranty applies to the bike lock chain, 30 days money back policy, 24-hour online customer service. If you have any problems or concerns about your purchase, please get in touch with our customer service ASAP and we will do everything we can to help.



















Jarod –
Very heavy and large chain, which is what I wanted. I received it without the “free steel ring”, but the seller promptly mailed me one (from China so it took a while to receive. This basically allows you to use the chain at 3.5 ft or so, making it equivalent to a 6-7ft chain that you need to loop all the way around.
Edward rivera –
Good
Mike –
So, straight to the point… the chain itself is a beast. No question about it. Thick, heavy-duty steel. Excellent welds. No casual thief is going to bother with this thing. Even the chain covering is good quality, durable material.But the lock itself has plastic housing. It’s quite heavy, so I know there are metal parts inside. Maybe it’s tough as nails. But it looks and feels like something that would not deter a casual thief. Granted, no lock can stop a determined thief. But you want to be a troublesome target, so they move on to an easier target. This lock… I don’t know… looks like an easy target to me.It’s a padlock style lock with a completely removable shackle. The body is plastic and honestly, I’m quite sure I could remove it with a few blows from a regular hammer. OTOH, the shackle is a nice thick steel that penetrates deep into the body of the lock, and is well-designed to prevent the use of bolt cutters, although (again) it’s only protected by the plastic body.My plan was to use this on our two e-Bikes that we carry on the back of our camper van. But I’m just not super-comfortable with the lock. Also, the chain itself is SOOO heavy that I’m afraid it might damage the bikes, bend spokes, etc. And while it is longer than most, it’s not long enough to go around both wheels of both bikes and also anchor to the bike rack. I tried lots of arrangements to no avail.Overall, I’m a bit “mixed” on this chain and lock. The chain itself is a beast. But the lock is not heavy-duty enough to deter a casual thief, IMO. At this price-point, I don’t think it’s unreasonable to expect a rugged, heavy-duty metal case for the lock.
Nobody –
I don’t know if it will stop an angle grinder but it’s as good as you can do for under $50
JFSV –
The whole thing has some weight to it. I was indifferent about the lock itself at first because the shell seems plastic. It is an additional security measure I use to lock my bike. So far I like it and hope it never gets tested but Iβm happy with it.
Miguel Guzman –
Thieves tried to steal my bike last night but couldn’t cut the lock. The chain is awesome, super strong.
Blue Sky –
For a little more weight you get much more peace of mind. It’s also reasonable priced for what you get. It also has a unique feature where the length acts as a chai that is much longer. Used on an electric bike I don’t notice the weight. I think it’s worth the added security on any bike.
VIN –
To be honest using this for my outside generator and so far perfect. Sturdy and well made with no rust after a month or two of use.