Definitely would not buy it with out the lock, since you half to buy a lock. And that 40 bucks won't buy anything close to it. Plus the lock really makes this a good deal.
Kryptonite New York Standard Bicycle U-Lock with Transit FlexFrame Bracket (4-Inch x 8-Inch) https://www.amazon.com/dp/B005YPK9SY/ref=cm_sw_r_cp_apa_e1fyzbPV7XNA4
I went all out and got one of these W/ the 4ft. extension cable as well. Obviously I won't be leaving it anywhere out of sight for more than a few minutes because bike theft in Whistler is SO bad. https://www.amazon.ca/Kryptonite-Standard-Bicycle-Transit-FlexFrame/dp/B005YPK9SY/ref=sr_1_6?ie=UTF8&qid=1463033935&sr=8-6&keywords=kryptonite+u+lock
I don't have a car, so I ride everywhere I go (or public transport).
I do have a D lock - This one:
But at 2.5 Kgs it's a pretty big dead weight to lug around.
I do feel rather daft though, didn't think of just attaching the lock to one of the bike racks and leaving it there till the end. Good thinking Batman!
Get a thicc U-lock (like this) and a thicc flex cable (like this)
When you lock your bike outside, lock the frame with the U-lock, and string the flex cable through both wheels and the seat if you can. Never had my bike stolen. If you have a nice bike, you need to get just as nice security for it.
Other tips:
You can see most of the letters on the picture.
Haha, yeah I've already ordered one of these. I don't plan on losing this bike anytime soon.