Mark from New Zealand

Hi all, I've not been here for a while. I've moved house and my KK is now on a high balcony with a glass balustrade. My problem is I'm in New Zealand and we're living in a very active earthquake zone. Our last big earthquake, for example, was a 7.8 last November which was strong enough to break concrete foundations down our road (we're on poles). So my question is, is there a way to lock the wheels on the KK? Otherwise I'll have to look to building some time of (ugly) frame around the wheels. Thanks in advance.