Huge fan, I've been showing all my friends this up-armored RV Lock! Keep disrupting the lock industry!

The strongest lock in the world, without a doubt. Thieves will move on to easier targets when they see this monster!! Very well made with good coating protection to avoid bike damage. Obviously the weight is unavoidable if you want the strongest lock in the world, but there are two relatively minor problems that could be easily be resolved. The lock is a bit awkward to use. Not a very positive key insertion, so a bit fiddly. And for ebikes with larger frames, the lock is just a bit too small. Obviously an increase in size means an increase in weight, but it would be worth it to to suit ebikes which need more protection due to their higher cost. But, still the best lock for peace of mind.

I bought a 2-pack of Altor Ti locks about 5 years ago, and I went through several bike-frame lock holders that had a weak point where you attach the strap, and they kept breaking. After replacing them a few time I stopped, and went 3 years using those 12" long reusable rubber twisty ties to strap my lock to the bike. I went back to the website recently to find them redesigned with the weak point eliminated, and bought two. Arrived fast, and there is NO WAY these will break now. Very happy!

Works as advertised! Feel that my race trailer and equipment are protected.

SAF 2516 TRAILER LOCK

I've been towing trailers around for over 50 years and have purchased almost all of the coupler lock designs that have been made. All were trash that could be defeated in 2 minutes with a grinder or picked even faster. I never understood why someone didn't didn't fulfill the need for a proper trailer lock. Then Altor came out with this. Now this is a proper lock to protect my very expensive boat. They seem expensive but are actually less than half a percent of the value of my boat. I am no longer the low hanging fruit when the trailer thieves come calling. Altor is going to sell a bunch of these locks.

My bike is still here, thank you Altor.

I ordered this lock after getting my former trailer stolen from my driveway. Don't have the replacement yet but I'm counting on this to at least deter thieves from steeling the next one! Liked the reviews I read and was most assured by the lock picking lawyers positive review!!

When I first started looking at this product, my first thought was SAF meant Strong As F$%@. And after receiving this coupler lock and using it for the past couple of weeks, it is definitely beafy and secure. It's also real easy to use.
The other coupler locks that I have seen on the market doesn't even compare. I highly recommend this coupler lock.

I haven't seen it, but I wish that SAF had a coupler latch lock, and possibly a receiver hitch pin lock, to go along with the coupler lock.
Whenever I end up getting another trailer or towable camper, I definitely would be ordering another coupler lock

This lock is badass! Way better than expected. Heavy sucker too! Very expensive, but extremely worth it. Don't even think twice if you want perfect piece of mind that your stuff won't be stolen easily. They better bring an arsenal if they want to cut through this lock! I don't leave reviews often, but this one deserves it. I'd give it 10 stars if I could. Worth every penny if you're trailer is expensive and storing expensive stuff in it. :)

I had first tried thier biggest competition in the hitch lock market, who is a great company, but the product was loose and clanky with an aluminumbody lock. I returned it and bought SAF. Only downside to SAF is its as heavy as hell, but that's the cost of security. I feel comfortable leaving my RV trailer unattended at RV sites in Mexico, which says it all.

We bought two of these locks to take on our travels with our folding bikes. Weight is an issue for air travel and security is an issue with locking up an expensive folding bike. This lock is the best solution we have found. The lock is small, compact, and easy to transport on a small folding bike like a Brompton.

Nice storage tote

my only issue is that it is a liitle difficult to put on which makes it hard to take ofdf and put back on. i do not like to leave it on while my bike is parked. the quality and design are excellent

Very pleased with the build quality of this trailer lock. I feel truly comfortable that this product will add the much needed additional security I needed for my travel trailer….