Bike lock recommendations

Recently bought a new bike (not for anything special just convenience of getting around locally without driving) & need to buy a bike lock for it as its quite common for bikes to be stolen but a bit lost on what one to go for.

I'm looking on Amazon for one around £10-20 & would prefer a key lock one over combination

Would appreciate any recommendations anyone may have on one.

Thanks!

 

Get a D/U Lock, that's what was recommended to me by the police after a string of bike thefts in my area. I live in London so you can imagine there's quite a lot of it going on.

I recommended this one to my friend based off of reviews and she's been very happy with it: https://www.amazon.co.uk/Kryptonite-Bike-4-Feet-Kryptoflex-Cable/dp/B005YPK8G2/

 

Thanks mate sounds like a better pick than the one I'm using currently, will take a look!

 

thick chains mate all other locks are useless

 

the typical U lock can be broken with a hammer