You can't lock the frame to the rack - the vast majority of locks don't reach - so you have to lock the back wheel to the rack, and then stick another lock around the back wheel and the frame if you actually want to secure the bike. It's within a garage accessed by employees only, but still...
We have about 50:50 of Sheffield stands and similarly shit racks that only fit tyres up to 35mm or so. Unsurprisingly the Sheffield stands tend to fill up first.
I leave a d-lock and kryptoflex cable at work so if I have to use the shit racks I lock the frame/rear-wheel with the d-lock and with the kryptoflex cable through the front wheel and round the rack (and into the d-lock). Not ideal but the best I can do in that case.
Despite being in a cage partly down the loading bay of the building there are still theft attempts. They recently took an angle grinder to the door of the cage and got 3/4 of the way through it before being chased off by security.
We have about 50:50 of Sheffield stands and similarly shit racks that only fit tyres up to 35mm or so. Unsurprisingly the Sheffield stands tend to fill up first.
I leave a d-lock and kryptoflex cable at work so if I have to use the shit racks I lock the frame/rear-wheel with the d-lock and with the kryptoflex cable through the front wheel and round the rack (and into the d-lock). Not ideal but the best I can do in that case.
Despite being in a cage partly down the loading bay of the building there are still theft attempts. They recently took an angle grinder to the door of the cage and got 3/4 of the way through it before being chased off by security.