Concerned about your bike's security? We all know that disc locks, ground anchors and chains can be cut through, given a battery-powered angle grinder and the bike's owner away at work or on holiday. Even inside a locked garage, it may not be safe. Bault (it stands for Bike Vault) reckons it has the answer – hide your bike underground. It all sounds a bit James Bond, but the Bault a serious business offer by a British start-up, which will start selling the unit from April 2022. The Bault is an hydraulic lift enclosed in a steel and concrete box, built under the floor of your garage. Installing it takes three days, starting with a mini-excavator digging a 5.4 cubic metre hole,