Brinks 3020-057 Trailer Wheel Lock, J-Lock Style

Nothing is theft proof. The object of this is to influence someone to decide to steal another trailer instead of yours.Good: easy to put on and off, even with a slipped disk in my back and the middle of the Minnesota winter, I had no problem getting in on or off in a minute. Good lock that fit perfectly with the bar. Small enough that it doesn't take up a lot of space in my trunk when not in use. (about the size of a jack handle)Improvement suggested: As a theft deterrent, I with there was something to make it more visible. Maybe a large brightly covered plate that you can stick on it that would cover the wheel. This would make it a lot more visible. Due to the small size, and at night, someone might not notice it until they started pulling away with it and realized one wheel wasn't moving.

The photo is kind of deceptive i.e. the bar is much smaller than you think. I wouldn't recommend this product; the idea is great, but the bar is too small and the lock is dismal. I am no thief or have experience at stealing, but I'm sure I could break the lock in minutes with a hammer and bar. I thought I would be able to use a larger quality lock but it would not fit within the bars slots. Maybe a basic master lock you use for high school gym lockers would fit. I would say it was money wasted.

Got this lock the other day even after reading how some people had trouble putting it on and how it doesn't fit some trailers, etc. Honestly, I took it out of the package, went outside to see what was involved in putting it on and just did it. It took like 20-30 seconds. The thing fits my double jet ski trailer like a glove. It could even fit thicker springs if needed and the lock fit the steel bar perfectly. My only beef was that the lock really isn't the best. It says "China" on it almost as big as it says "Brinks", if that says anything. It looks strong, but it's a little sticky. I was going to give it four stars because of this, but since the value of the thing is so much better than anything else out there, I still gave it a five star rating. The two things that make this design better than some of the other designs out there are the fact that:1) It prevents the wheel from moving at all, so even if somebody were to remove a wheel chock while the trailer is parked on a hill, it still wouldn't roll down the hill. I wonder if the "claw" or "pincher" type locks would totally lock a wheel from moving or still slide, but make it so it couldn't be driven with.2) It seems darn near impossible to take the wheel off the trailer in attempt for a thief to replace it with another one.The only designs I've seen that looks better are the ones that cover the whole side of the wheel. Then again, these look pretty difficult to install and remove and they're like 5x the price. If I had a small/medium sized trailer, I'd definitely buy this one. For bigger boat trailers, I'd double check the size of the springs and distance from the wheel to the springs. Overall though, a great buy!

Easy to install and fit like a glove. Not sure how well it would hold up if some one tried to steal my trailer. But it would make as lot of noise if someone tried to drive off with it.

The J-lock bar seams to be of decent quality, however the lock is typical light weight "Made in China" JUNK. I am going to see if a Master Lock 40DAT 2-3/4-Inch Discus Padlock will fit the bar, however now I am looking at a cost of $45 for the set up. For the $33 that I paid, $31.50 is for a steel bar & a $1.50 is for the lock.

Might want to buy a bigger lock but the bar does the job. Also I ended up ordering from prime because there was a mix-up in Shipping. Shop Eddie's promptly refunded me. Thanks.

I didn't realize the disc lock would be so small, because I didn't read enough of the reviews before pressing the "buy" button. I tried a "normal" sized disc-lock and it and it "fit". The opening in the larger, normal sized disc lock fits this bar loosely, but doesn't come off. The thicker shackle actually fits in the grooves just fine. I went back to the smaller lock that came with this, because it fits better and it's cute. Within the first day, I tried moving my trailer and tweaked this new bar into my springs and rim, after telling myself over and over to look out for my new trailer lock. I need a more obvious reminder, no damage was done, since I was trying to move the trailer by hand, but it did rip a bunch of the undercoating off the springs and scratched my rim up good, so it'll rust now unless I re-coat it with something, but it'll probably keep happening, due to the way this thing hangs on the spring, so I'd like a rubber protector or something. I basically paid $25 to damage my trailer, even though I swore up and down I'd be careful. I pulled this blunder within 24 hours. It's not the lock's fault, but I wasn't as prepared for it as I thought I was.It's also pretty hard to use. I have to really scrunch down and stretch my arm if I really don't want to lie down on the ground (like in the rain), but when I lie down on the ground and stick my head underneath the trailer, it's easier to attach. My trailer is 6 x 12 enclosed, with 3500 "drop-axle" springs and this lock is just barely long enough to work. It's small, but heavy-ish.It's probably more for feeling, than actual theft deterrence. I feel like my trailer is more secure now, with coupler lock + this wheel lock.

The Brinks J-Lock is a simple, rugged, visible addition to a receiver lock. I found the "fit and finish" a little less than perfect right out of the box: a raised seam on the lock casing needed dressing so that the round lock would easily fit around the square bar). This was a 2 minute Dremel job. I think a vandal would find easier things to bash; and it presents the thief with that "Not worth the effort - let's go look for lower hanging fruit" profile. I'm going to order two more.