On, shudder, Amazon, but it seems that vendor only sells on Amazon Canada. CA$50 for a 5 kg (11 lbs) 59" chain
I use a chain like this through the frames locked to the tie downs.
I use a chain like this through the bike frames and padlocked to the tie downs on either side.
I use a 12mm chain and a kryptonite lock when I'm parking in sketchy areas. And I chain it to a pole or tree, whatever is available.
It's a pain to carry it, maybe you can leave it at work?
I use this with a nice lock: https://www.amazon.com/gp/product/B00X6E0NE0/
Item | Current | Lowest | Reviews |
---|---|---|---|
Schlage 12mm Cinch Ring Security Chain (No Lock) | $69.25 | $69.25 | 4.8/5.0 |
^Item Info | Bot Info | Trigger
I use a heavy motorcycle chain with a hard to cut padlock.
II have this one. I like that it has a loop on one end so you can cinch it up to something solid and then lock the end to your bike or vis versa.
A heavy chain to a tree or something else solid and a locking cover would be my recommendation.
And full coverage on that insurance policy.
I'm partial to this chain.
First and foremost no chain is cut proof nor is any lock un-pickable. With that being said what you're really shooting for is simply deterrence. Consider where you'll be parking it a majority of the time, and any place you consider to travel to. Ideally, at any location you'd have a secure anchor point. Any such place that'll allow you to loop a chain around or through will work.
When I have it parked outside during the day I use this particular chain to secure it around a fire escape. I use the smaller version to travel with if I know I have a small enough anchor point at my destination. As others have said I'll occasionally simply wrap it through my rear tire in a pinch but it's really a horrible idea. Two people can easily throw it right in the back of a truck if you've "locked" it up this way.
I like those "cinch" type chains as you get a lot more usable length out of them. I've drilled a ~2.xx" hole in my rear plastic and installed a grommet to pass the chain through, locking my frame. (See SpoonKiller's post here to see it in detail.)
As far as locks go there's a million options to choose from. I'm not really that well versed on them so I don't think I'm the best resource. I'd simply look for a lock with a shielded and hardened shackle and some common security features implemented in the core. Here's a great article on the subject. Take a look at #4 on page 4 where it discusses different pins and their effects on pick attempts if you want greater detail.
I've heard multiple people speak to the effectiveness of the stock steering column lock so I always lock that as well. I also used a cover when I had it parked outside which is another low-cost/effective deterrent.
This is silly. Many locks are very hard to defeat. Unless you carry a grinder around and are willing to make a ton of noise in public. Try cutting these with bolt cutters... or you could try and pick the lock... if you are one of the half dozen people in the world who might be able to pull that off. Use those and the criminals will just move on to the next bike.
https://www.amazon.com/Schlage-999478-Security-Chain-Cinch/dp/B00X6E0NE0/ref=sr_1_5?s=hi&ie=UTF8&qid=1504739517&sr=1-5&keywords=security+chain https://www.amazon.com/Keyed-Padlock-Different-2-15-64/dp/B01LX6SFE5/ref=sr_1_1?ie=UTF8&qid=1504739615&sr=8-1&keywords=abloy+padlock