Lost bike lock key (cheap Dunlop lock, with cylinder shape hole)

[Gravity Aided]

Some of the old bike locks could be opened with the blunt end of a Bic Pen.

 

[jefmcg]

Some of the old bike locks could be opened with the blunt end of a Bic Pen.

I have tried the Bic biro method to no success.

 

[oldfatfool]

Hammer and a screwdriver.

 

[andrew_s]

Some of the old bike locks could be opened with the blunt end of a Bic Pen.

"A Bic pen" in the UK means one of these, which is the wrong size for cylinder locks.
I'm reasonably sure that a standard US "Bic pen" will be a different model.

 

[Gravity Aided]

No, the plastic ones that are opaque, not the old school transparent ones.

View: https://www.youtube.com/watch?v=LahDQ2ZQ3e0

This guy was actually disappointed it worked.

 

[KnackeredBike]

[QUOTE 4871704, member: 45"]Your bike frame is much easier to saw through than the lock. Saw through the frame, remove the lock, then use Blu Tac to rejoin the frame.[/QUOTE]
Better to just fashion a spring from paperclips (top tip: steal them from work) and claim it is rear suspension.

 

[rliu]

I had neglected to come back to this. What happened in the end was I just used a cheap mallet, pulled the lock taut with the U part of another lock, and hammered it off in about 5 blows.

Also you can get the 'classic' Bic pen shape from poundland fwiw, 8 pack as well

 

[Scotchlovingcylist]

I had neglected to come back to this. What happened in the end was I just used a cheap mallet, pulled the lock taut with the U part of another lock, and hammered it off in about 5 blows.

Also you can get the 'classic' Bic pen shape from poundland fwiw, 8 pack as well

Not a great advert for cheap locks
Glad you got sorted though

 

[confusedcyclist]

Yep shows how easy some bikes are to steal, we had a spate of thefts at work, some daft people are still using the cheap cable locks that get always seen to be targeted first. For some, a cheap bike doesn't need an expensive (>£40) lock, for me it's not worth the stress and hassle of a 10 mile walk home in SPD shoes, while being unable to get a taxi or the bus (as I most likely left my wallet at home, Murphy's Law bruv.)