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OnGuard 8020 Mastiff Integrated Key Chain Lock - 3.57' X 0.39'[110CM X 10MM] Black

Free shipping on orders over $29.99

$83.36

$ 36 .99 $36.99

In Stock

About this item

  • X2 Double Bolt Locking Mechanism


3. 5' 10mm (0. 39") titanium reinforced hardened square link chain mated to an integrated X2P Dual Lock Down head featuring new double rubber cover for better protection against bumps and hits. 110cm x 10mm(3. 57' x 0. 39")


Colin
Reviewed in the United States on June 3, 2024
Really strong chain, comes with 4 spare keys too. I wouod suggest this if you have an ebike, it’s very heavy and will be awkward to carry on a normal bike.
Faith H.
Reviewed in the United States on November 10, 2024
I struggled to figure out how to use this the first time, because I thought there was a trick to turning the lock and removing the key.There’s no trick. Basically if the key is in the lock the lock opens. You can’t remove the key unless you lock it again. This is a rather genius way of making sure you don’t lose your key.Now that I understand it, it’s super simple to tie my bike up anywhere in just a few seconds.The chain is heavy duty, so this is not a fun thing to carry around (heavy). I keep it in a pannier on my bike, so it never really bothers me. Another option is to wrap it around the top tube several times and lock it in place while on the go. No need to keep it in a backpack.I got the smaller size, and that's more than enough length for securing my bike everywhere I go (unless you are tying it to a tree).It's a rather menacing looking lock, so unless someone is traveling with a saw, your bike isn't likely to become a target. I was tempted to buy some of the cheaper options, but I am SO SO glad I went with this one. I feel very confident about my bike being secure wherever I leave it. Definitely worth the money.
Christopher J. Pane
Reviewed in the United States on October 25, 2024
very solid chain lock , it passed a bolt cutter test . the bolt cutters were useless , like i said ROCK SOLID PRODUCT , EVEN A GRINDER WOULD TAKE SOME TIME AND DRAW ATTENTION . 5 STARS
Nathaniel P Molgren
Reviewed in the United States on April 14, 2024
This lock is no joke. The chain is heavy and there is no denying that. The lock is a bit silly in my opinion. The key doesn’t easily slide in and it’s very ambiguous as to whether it’s locked or not (click feel when turning key). The key doesn’t come out when it’s unlocked - which is very clear - but I would rather have a more traditional @click - it’s locked” type of feel.
Daniel
Reviewed in Canada on June 23, 2023
awesome chain, bought a 2nd one and gave mine to my dad for his ebike; definitely would recommend!
kim
Reviewed in the United States on December 26, 2023
This chain is well built and sturdy. Comes with several extra keys which was a bonus. Nothing is 100% against bike thieves, but this does give me an extra layer of security. It will definetaly slow down the bad guys.
Pablo
Reviewed in the United States on August 16, 2022
My bike has not been stolen yet. Who knows how many bike thieves passed on my bike, I’ll never know. This chain is heavy duty and appears to be good quality. I also like how the lock holds your key when it’s unlocked, until you insert the other end back in again. So your keys won’t fall to the ground while you’re wrapping the chain around your bike.
Teodor G.
Reviewed in Canada on April 10, 2021
Great lock, very sturdy. The locking mechanism wouldn't work properly after a year, at first I thought the lock was defective but it just needed to be lubricated (either WD40 or White Lithium grease, whatever you have will fix the issue will work).So to anyone looking for a sturdy lock you wont regret this one...just keep it lubricated at least once every few months, or once a month would be better especially if you use the lock out doors often.
Nari Esquivel
Reviewed in Mexico on May 24, 2019
Realmente muy resistente, lo que lo hace impresxindible para proteger bicicletas.
Chuck S.
Reviewed in Canada on June 8, 2018
Exactly as described. More peace of mind when locking my gate.
Online_Shopper
Reviewed in the United States on January 2, 2018
This chain is great. It is super heavy so, since I am 5'5" female, I can't wear it over my shoulder when I am riding my bike, but the weight is a good thing since it makes it tough to cut through. I store it in my bike's saddlebag. I can even ride with it in a backpack. The reason I took off a star is because I often have a hard time getting the key out of the lock after locking up my bike. When I am running late, it is aggravating to have to fiddle with the key for a while before I can leave my bike after locking it up. So the key difficulties mean a lost star for this review. I don't know if other people have a problem with their keys sticking.The other thing that is annoying about this key is that its light (which is a sweet feature) is sometimes difficult to shut off. Sometimes I can see it glowing in the dark and realize it must have been like that since I came in hours ago. I have no idea how long the light will last at this rate. I have had this chain for a year so far.
Stephen T Hammond
Reviewed in the United States on August 26, 2017
I have only had this for a little while but so far I am really impressed. Construction is very good I am confident that it will deter any would be thieves. On some chains that I read about before ordering this one a common complaint was the lock being hard to unlock, so far my lock opens smoothly with no problem. The main key is very nice with a light to help you unlock the chain in the dark. 4 extra keys come with the lock with the ability to order more if you need to which is very nice. I was a little apprehensive about carrying a bulky chain but it curls nicely under my seat and I don't really feel the extra weight.
Michael
Reviewed in Canada on July 22, 2016
Awesome lock, really heavy. Great price. $70 can't beat that.
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