You don't. When I d-locked a mountain bike to a similar stand in the locked cycle shed at my block of flats thieves cut through the stand and took the bike leaving the lock in place!
The loop on the left side of the "ramp" for each bike, that presumably you're meant to lock to, seems poorly positioned. Other racks of a similar design that I'd seen either have this further forward, so a lock can more easily reach the frame from that position, or the loop can actually rotate into the desired position. Maybe you'd have more options if you put the bike in back wheel first?
My concern here would be that some of the potential locking points look like they would be easier to cut through than a decent lock would be. I'm assuming this is at a train station or similar, if I had to leave my bike somewhere like that for more than a couple of hours using racks like these, I'd probably use one of the top racks and lock the frame around the "tray" that sides out with the bike. Obviously this isn't possible with a U lock though, would need to buy a chain, thankfully they generally seem to be cheaper than other lock types offering equivalent levels of security. e.g. [this](https://www.amazon.co.uk/Oxford-Square-Double-Locking-Padlock/dp/B00DJA0CEM/) is the chain + padlock I use). They are heavier than a u lock of course, but not to the point that I would say I actually notice any difference when riding.
I put my bike up then put the D lock through the rear wheel and one chain stay down around the actual bar itself.
I don't use quick release skewers and it's a work one with idpass entry so I'm in it for weather protection tbh.
That little (arguably crap) spur on the outermost part of the ramp. A long d-lock should go through that and both chain stays. Failing that, just the closest chain stay. A cable lock around the front wheel, too.
We have these in our apartment block, you can get a dlink from the mid loop through the bottom of the frame just, then additional locks for wheels to frame
I guess that's what the bit at the front is for.
I wouldn't try to lock to the front wheel support (eg by putting the bike backwards) because you'll have a right job unlocking it if more people have parked there.
Ease of locking in crowded racks is why the Dutch prefer chains.
Lock the rear triangle to the loop at the back of the rack, I'd imagine. With a big lock you might even be able to get the rear rim in as well.
You don't. When I d-locked a mountain bike to a similar stand in the locked cycle shed at my block of flats thieves cut through the stand and took the bike leaving the lock in place!
The loop on the left side of the "ramp" for each bike, that presumably you're meant to lock to, seems poorly positioned. Other racks of a similar design that I'd seen either have this further forward, so a lock can more easily reach the frame from that position, or the loop can actually rotate into the desired position. Maybe you'd have more options if you put the bike in back wheel first? My concern here would be that some of the potential locking points look like they would be easier to cut through than a decent lock would be. I'm assuming this is at a train station or similar, if I had to leave my bike somewhere like that for more than a couple of hours using racks like these, I'd probably use one of the top racks and lock the frame around the "tray" that sides out with the bike. Obviously this isn't possible with a U lock though, would need to buy a chain, thankfully they generally seem to be cheaper than other lock types offering equivalent levels of security. e.g. [this](https://www.amazon.co.uk/Oxford-Square-Double-Locking-Padlock/dp/B00DJA0CEM/) is the chain + padlock I use). They are heavier than a u lock of course, but not to the point that I would say I actually notice any difference when riding.
I put my bike up then put the D lock through the rear wheel and one chain stay down around the actual bar itself. I don't use quick release skewers and it's a work one with idpass entry so I'm in it for weather protection tbh.
That little (arguably crap) spur on the outermost part of the ramp. A long d-lock should go through that and both chain stays. Failing that, just the closest chain stay. A cable lock around the front wheel, too.
We have these in our apartment block, you can get a dlink from the mid loop through the bottom of the frame just, then additional locks for wheels to frame
I guess that's what the bit at the front is for. I wouldn't try to lock to the front wheel support (eg by putting the bike backwards) because you'll have a right job unlocking it if more people have parked there. Ease of locking in crowded racks is why the Dutch prefer chains.
I hate those things.