ABUS 190CS/60 C High Security Closed Shackle Solid Steel Resettable Combination Padlock

I got this lock on Amazon warehouse deals and it turned out that someone changed default combination before it got to me, so it wouldn't open. Because of that, I tried several common attacks to see if it would open, including feeling for any binding in the wheels/shackle, a bypass attack as well as a typical brute force (try each combination) individually. I'm no expert at all when it comes to these but I have been successful with each of these in other locks I own as I like to keep my professional security skills well-rounded ;-)Bypass attack (the easiest way to open combination locks) didn't work because the number wheels are well-fitted and tolerances are great. I also couldn't really make enough progress with guessing or brute force methods because you need to press down on the shackle and then pull to see if the locking pawls retract vs applying pressure directly on the locking mechanism. Ultimately, a good keyed lock like Abus 20/70 or 20/80 is much more secure but this will definitely thwart unskilled attacks. The lock itself is also heavy duty with a beefy shroud so physical attacks will be also be difficult without the use of power tools. Basically, most thieves will likely move on to easier targets unless you have something they really want.

El candado es excelente, es más pesado que los candados tradicionales del mismo tamaño pero es de alta calidad y de un nivel de seguridad 8.

Excellent paper weight! I'm thankful I didn't lock my bike up with it because there's no way your cutting that off, very secure. My only suggestion to the manufacturer is too provide better instructions on setting the combo, I had to go to you tube for help took me 3 tries to set it then couldn't get it unlocked, now an expensive paper weight. My advice would be by an ABUS but get the key version.

Had one of these on the entry gate and it worked great for about 7 years until the gate and lock were damaged when a semi truck hit the gate. Impressed with the past performance I bought two new locks because of this. Replaced the one hit by the truck and put another one a side gate. Main gate lock gets opened and closed 2-3 times a day. Side gate lock gets open 3-4 times a week. Side gate lock seized up and had to be cut off after about two weeks with no visible signs of damage. Now a month later the main gate lock has seized up had to be cut off also. No visible signs of tampering or damage, locks were not dirty, rusty, etc. they were on a loose chain and not under constant tension. Just worked fine until they closed a little ruff once then never opened again. Wheels still turning but lock will not come open even with center of the shackle cut out.

If this lock actually worked, it would have been the lock I needed, sure the numbers could be larger and more visible but at first glance it appears to be the strong lock I need but if it only worked. You can spin through many or all the possible combinations until it finally opens but when you lock this lock again it sets itself to a random combination leaving you to go through the hours and hours and hours of spinning through combinations trying to find the elusive combination and this continues even if once opened, you attempt to use the key and reset a new combination for when you remove the key and relock the lock it once again sets itself to a random combination different from the combination which was chosen as the new combination. If all this is not bad enough, the lock dials are getting very hard to turn and I believe they will eventually very soon be nearly impossible to turn even if oiled. This lock will be returned if I can do so and from the reviews I have seen left for this lock I will not accept a replacement as I have very strong reason to believe that the replacement lock will have a very high likelihood of being no better then this one and it will need to be returned also, IS THIS BECOMING THE QUALITY OF MERCHANDISE SOLD ON THE AMAZON WEBSITE???????????!!!!!!!!!!!!!