Economical Alternative Bike Lock
 

Saw a Sheldon Brown posting where he advocated (among other possible solutions) a heavy duty chain with polygonal link cross-section and a fabric wrapper to protect the bike. I looked up a couple of these on bike web sites priced over $100 -- then just happened to see this one at Harbor Freight the other day

Heavy Duty Padlock Chain

I imagine the bike-branded ones may have a few touted advantages, but it looks to me like this might be a good alternative for 1/5 the price.

Oh, and BTW, this thing is HEAVY. If you're one of those folks who bought a carbon fiber bottle cage to save 2 grams weight on your bike, you do not want to know about this thing.

Good find! Thank you!

Good find.Definitely cheaper than the "two, mini if you can" u-lock method. Answers the question, about why not a links from hardware, another lock, do it yourself, since I saw the Kryptonite monster. Although, reviews said that one weighs 15 pounds (didn't check spec to see if they were exaggerating) and this one weighs 5? Even if you still for some reason wanted the krypto lock, it's still cheaper with this chain and you'll have a back up lock.
I think the harbor freight ad I want to read, lol. It is one of the few I've ever been like, why didn't I know about this store before.
Heavy is a no go for me, for now. :(

HF is so hit and miss with products, but fortunately they don't edit the reviews and they are all legit. Be sure to always read the reviews before buying anything there. The lock and chain looks to be a good deal to me. I actually need to pick up some chain so I can lock my bikes to the tow-hook on my car when using the bike rack... I've been using cables but just don't feel safe doing that.

NB
You have to go get it.. walk in the door..

Dudes, it's iron. Chinese iron. Not steel. Not hardened steel. Iron.

You should give this more thought, unless your strategy is to hope thieves think it's steel.

lol, that explains it. That's what I get for not looking carefully; I would have, before a real purchase, though.
Still viable to get other actually hardened steel chain, sleeve it if desired and add lock of choice. Wonder if one saves anything, that way, though.

I am also curious how the product weight is more than the shipping weight?

Compared to the economic, emotional and time loss to having a bike stolen I find a good kryptonite u-lock and a good chain to be quite economical.

I thought coiled cables were the way to go because they "mash" rather then cut Or break like chains do with bolt cutters. I use two for my ride.

You need boron hardened steel. And more importantly, a padlock with a shielded aka closed shackle - or an oversize hardened one - otherwise taking out the lock is quick and simple.

If by "mash" you mean "Cut really, really, REALLY easily" then yes. Otherwise no.

You add water, doh!

You can normally save quite a lot if you need a heavy chain lock. But you have to know what you're doing - get a padlock with a vulnerable hasp and your chain is useless. There's a good article here:

Bicycle Fixation: Security