That D-lock is probably pretty ok. My only question would be how big is the 'D'? It's best to make sure that it fits snugly around your bike and the pole/rack.
Maybe if your bike is worth more than a second hand car, you should look at getting something more heavy duty, but if you've got a decent D lock, and something holding all the quick-release parts to the bike, you're going to be pretty safe unless someone has specifically targeted your bike.
Basically there is no lock that can ensure your bike is 100% safe, so locks do two things
1: Act as deterrent against passer-by thieves - if someone is out to steal a bike they'll target something quick and easy to steal
2: Slow down anyone who tries to steal your bike - if they have to saw at your lock for half an hour, they're less likely to take it, even if it's really nice
I use one of these: http://www.cyclingsports.com.au/vulcan-supreme-lock-small-best-in-t...
And a crappy little wire lock to hold my (relatively cheap) wheels on.
My only trouble with it has been that sometimes you can't lock up to thicker poles, because it wont fit. It's extra good because unlike most D locks, even if someone cuts through once, it wont swing open - they'd need to spend twice as long to cut both sides.
Hope that helps
The lock it self is enough to lock my bike's frame and rear wheels into a pole.
Actually I am interested in the lock that you put the link on.
Is that lock big enough for lock frame and rear wheel into a pole?
Thanks anyway for the tips.
It manages to fit the rear wheel (just) on my steel frame, but not on the alloy bike.
Thanks Sam for the hint. The Vulcan costs less than my old, now inferior, Kryptonite D-lock.
No Worries, I reckon I got mine from Bicycle Express in town for about $40 or so.
Chain your German Shepherd to the bike and noone will touch it :)
I rather chain my bike with a pitbull, or maybe a corgi because it is so cute so no one want to touch them.
Yep, most padlocks and chains can be broken with bolt-cutters. A decent D-lock, by comparison, can only really be tackled with an electric grinder - which is more likely to draw attention to a thief, isn't something a would-be thief is going to carry around with them, and will take more time.
I suppose it depends on the value of your bike though. But a $30 or $40 D lock is going to be cheaper than anything you're likely to ride.
I read that chain and padlock are the worst bike lock. ^^;
Except Kryptonite New York Fahgettaboudit Chain which is actually designed for motorcycle.