Forget contacless payment, here's contactless locking: 18-year old Frenchman brings contactless tech to bikes

I think its great to be innovative and I like the idea. 

Except that I don't think I will be brave enough to use it on my bikes because I can see that anyone can just pick up my bike and run with it on a scooter or in a van and it's gone.  A bike needs to be locked to something strong. 

I personally would love it if London can start adopting what they have in Japan of those underground cycle parks. 

I would have thought that an app for your phone would be far more sensible. Something less to carry or lose.

AXA already make something like this. Take a look at their Electronic Framelock and Connect system.

I've got a massive chain and U-Lock fastened to the sheffield stands where I work - too heavy to lug around. Each time I get to work I have to unlock the locks, thread them both through frame/wheels, and lock them, sometimes to a different stand if there's no room on the one my locks are on, sometimes very delicately avoiding a bike on the other side of the stand. Each time I Ieave, it's the reverse.

It's a PITA, so it's a problem I'd really happily have solved, and would gladly throw money at it.

But convenience seems to me to mean either less secure (at least when my locks are on there's sold secure gold stuff wrapped round every bit of my bike) or more susceptible to screwing up (?) as brooksby says, or they come built-in, adding weight to a bike that I don't want.

So 'secure' to me at the moment means massive, inconvenient, old-school heavy locks with keys - but I'd happily be told otherwise.

Not this sort of thing again. What's wrong with a physical key which goes in a hole and manually turns the mechanism? Far less to go wrong, I'd think.