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Posted

Managed to snap my key in my d-lock and messed up the lock in the process. What can I do to open it so that my bike isnt chained outside my office till the end of time. Do the police do this kind of stuff?

Posted

Did this at work myself......an angle grinder will take about a minute,makes lots of sparks and you need an extension lead from work.

I've heard that cooling with a plummers spray, (after removing plastic) will make it brittle enough to crack with hammer but not tried this.

Posted
Did this at work myself......an angle grinder will take about a minute,makes lots of sparks and you need an extension lead from work.

I've heard that cooling with a plummers spray, (after removing plastic) will make it brittle enough to crack with hammer but not tried this.

 

If you can cut through the bike lock with an angegrinder in a minute its not wort having, D_lock are nutoriously bad locks.

 

most locks will be or should out of reinforced steel which is very tough and shouldn't be easily cut up, would need a lowspeed cutoff saw and lots of lube. We use hardend steel at work and it eats up saw blades.

Posted

If you can cut through the bike lock with an angegrinder in a minute its not wort having, D_lock are nutoriously bad locks.

 

most locks will be or should out of reinforced steel which is very tough and shouldn't be easily cut up, would need a lowspeed cutoff saw and lots of lube. We use hardend steel at work and it eats up saw blades.

 

You would think so, but when I lost the key to my bike lock that I used to lock the front wheel to the frame in my garage I was shocked how easily the angle grinder went through it...hot knife & butter sprang to mind:eek:

Posted

they are not particulary high security devices, they are just meant to take long enough to cut through that people wont bother. drilling the lock will be a mare i expect, i think i would go for a grinder, maybe nice fireman will lend you a chop if he is near, intrested to know if a jack in the center works, i would worrie that the thing is maluable and you just end up crushing the tube on your bike. Otherwise you are going to have to hack it,

 

as to the think becoming brittle i would not think that is likely, it may fatigue (SP) after several 100 thermal cycles but i would guess if freezing it worked then hitting it with a hammer would have worked anyway.

Posted
You would think so, but when I lost the key to my bike lock that I used to lock the front wheel to the frame in my garage I was shocked how easily the angle grinder went through it...hot knife & butter sprang to mind:eek:

 

I remember that's exactly what went through my head when i'd finished 'hot knife through butter' I was expecting it to take 10-20 minutes.

 

I don't know but it might be why they don't sell cordless angle grinders in B and Q!:p

 

Steve....like the car jack idea...I'll have a go at that, with some seriouse P.P.E. on!!

 

(i've got about 5 D locks from ages back that i've lost the keys for....er and the number they give you on the key! )

Posted
Did this at work myself......an angle grinder will take about a minute,makes lots of sparks and you need an extension lead from work.

I've heard that cooling with a plummers spray, (after removing plastic) will make it brittle enough to crack with hammer but not tried this.

 

If you can cut through the bike lock with an angegrinder in a minute its not wort having, D_lock are nutoriously bad locks.

 

most locks will be or should out of reinforced steel which is very tough and shouldn't be easily cut up, would need a lowspeed cutoff saw and lots of lube. We use hardend steel at work and it eats up saw blades.

 

Have a go at that 'reinforced' steel with an angle grinder ......you'll be amazed!!! Thing about angle grinders is you need extension lead and a power supply and not many theiving kid scousers have got that!

D locks are hardened steel try a hacksaw on them and the teeth just wear down till they're round, doesn't even scratch the surface of the D lock.

Posted

you can get some nice battery anglegrinders :) we had a dewalt one cost a fair packet but was nice then again if your a theif you could nick one and carry it around :p steal a good few bikes lol

 

 

 

If you can cut through the bike lock with an angegrinder in a minute its not wort having, D_lock are nutoriously bad locks.

 

most locks will be or should out of reinforced steel which is very tough and shouldn't be easily cut up, would need a lowspeed cutoff saw and lots of lube. We use hardend steel at work and it eats up saw blades.

 

Have a go at that 'reinforced' steel with an angle grinder ......you'll be amazed!!! Thing about angle grinders is you need extension lead and a power supply and not many theiving kid scousers have got that!

D locks are hardened steel try a hacksaw on them and the teeth just wear down till they're round, doesn't even scratch the surface of the D lock.

Posted

 

what's the point of cutting through the frame and then stealing it???

 

I thought the point of this was for the chavs in question to end up with a bike frame to sell....

 

anyway, I always use two locks on my bike at the office, one's a hardened steel cable in a rotating steel sheathing (to stop hacksaws) with a padlock, the other's just a cheepo halfrauds d lock but it looks big and solid. I don't know if either of them would stand up to a night outside mind you.

Posted
Did this at work myself......an angle grinder will take about a minute,makes lots of sparks and you need an extension lead from work.

I've heard that cooling with a plummers spray, (after removing plastic) will make it brittle enough to crack with hammer but not tried this.

 

Plumbers spray or CO2 fire extinguisher - spray on and whack it really hard with a big hammer...Job done. (oh, wear eye protection!)

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