mlts22 

If people are familar with Bike Club design (https://tinyurl.com/zh3ba), picture something with that shape, which telescopes in and out to fit around oversize tubes, but keep the space as small as possible to negate wrenching attacks.

Of course, for the lock cylinder, instead of the round key one in the original, it would be an Abloy Protec cylinder, Medeco3, or other lock which has a record for thwarting picking and working even in the most hostile climates. The lock would be rekeyable somehow, so if a key gets lost, the lock doesn't need to be trashed.

The lock's material would be changed to a modern alloy, similar to what Kryptonite uses, which has more cut resistance.

Lastly, if it were possible without sacrificing the security of the lock, have a decent holster for it, so the lock can go on the back of the seatpost without issue.

What would you (you the reader) like to see in a bike lock?

cal_gundert05

The bike.

Nermal

5/8 thick shackle - titanium, of course. Can't have the lock weighing more than the bike, now can we?

maximusvt

I was daydreaming about a lock for touring cyclists who don't want to carry a heavy U-lock but still want to be able to hit big cities and not worry about locking up for a few minutes. My idea is that you would remove your quick release seatpost, insert it through both tires (front tire removed and placed next to the rear) and then there would be some mechanism on the end of the seatpost (along with some kind of attachment) that allowed you to lock it to a bike rack or a signpost or something...

The wheels and frame would be secured between the locking point and the seat itself- obviously someone could remove the seat from the seatpost... that would have to be dealt with. But I think this is an awesome idea. I like the idea of touring between large cities and not having to haul a heavy U-lock along.

Mach42

A thin aluminum or carbon tube won't stand a chance against a hacksaw or tube cutter.

Da Tinker

A light weight bike lock that includes a Taser. Zap that crook!

mlts22 

Unfortunately a lightweight metal won't stand a chance against a hacksaw, bolt cutters, or the guy who plugs his angle grinder into the nearest lamp post. Even high end bike locks will fall to the right tools given time.

I've seen bicycle alarms where they go off if the bike is bumped, even sporting remotes that beep when armed/disarmed. However they add to noise pollution for the most part. Nobody responds to a car alarm these days, much less a bike.

What I'm looking at is something that is simple, elegant, and doesn't take time to use, so someone can get the lock on, even when suffering from major bonk, running into a 7-11 for a candy bar. I like the Bike Club design, where it telescopes in and out to fit tightly. However the current design used a round key, which is quite outdated, the metal seems to be some type of case hardened steel (which can shatter fairy redily), and the mechanism which holds the bar in place needs some type of update so its harder to pull out by force.

I was thinking of having the metal for the tubing made out of something more up to date like an alloy which is more resilent (the boron alloy of some high security padlock shackles for example.) The lock mechanism would be upgraded from the Ace round key lock to either a Medeco 3 lock, or a high end Abloy with a distinct keyway (so its harder to get duplicate keys.) No double-sided Abloy/Abus clone mechanism here. The mechanism holding the telescoping bar in would be some type of ball-bearing system similar to what American Lock uses in their padlocks, where it can withstand 2000-4000 kg of pull force.

maximusvt

So, you could make it out of something stronger like the same stuff Kryptonite uses in their U-locks.

2manybikes

OOOOOHH !!! A 6/4 Ti lock. I'll place my order now !