novaguy2u · 80-89, M
I've two, a lightweight wire with a key lock that I use short stops (groceries etc) and a heavy-duty wire with a combination lock. If you want something really strong. there is available a hardened steel folding chain lock that folds up into a compact shape and stays on the bike. You would need an angle grinder or gas axe to cut through it.
RoxClymer · 41-45, M
15+mm (thick) cable lock, I use key, lock it to somewhere you can thread it through your frame and rear wheel
when I was urban cycling in my 20s/ 30s
the only locks I trusted where from bike, with a guarantee behind it
when I was urban cycling in my 20s/ 30s
the only locks I trusted where from bike, with a guarantee behind it

SW-User
I've used chain-type locks before - not really a problem. I discovered Lockpicking Lawyer on youtube and watched a bunch of his vids on defeating various bike locks.
Sigil · 56-60, M
@SW-User Chains are fantastic, but they’re heavy to carry. I’m a road cyclist, so for me, pounds equal pain.

SW-User
@Sigil mtb is my go-to but yeah weight is an important factor.
Sigil · 56-60, M
I use a U-lock if I can find a bike rack. If no bike rack is available I use a 1/2 inch (12 mm) cable. Just don’t leave it unattended too long.

SW-User
@badminton Ta yeah I already do that.




