Hi, I've got a 2018 L2 and was concerned about security. I found a remote wireless bike alarm on ebay made by Cruxer. As an added bonus they're cheap. You can programme up to 8 sirens from one remote. I've got one on each door, they're vibration sensors and extremely sensitive, yet never give false alarms. I'm going to fit another to the side door, as that's the one as I regard as most vulnerable. I've got a Vanmate alarm, but the battery didn't last long and it's a motion sensor operated device, which means they've already damaged the van by the time it goes off.
I also fitted a Locks 4 Vans anti peel bracket to the front edge of the side door, and have seen a guy on Youtube fit a length of 20mm stainless rebar all the way down the inside of the rear edge on the side door to stop it being peeled there. This appeals to me more than drilling the door for hook locks and I'm probs going to have a go with that.
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