October 23rd – Here’s a security tip for cyclists with disc brakes. The other day I noted that you can’t make your bike theft proof, but you can make it fiddly and a pain to steal, hopefully putting off all but the most determined thieves. 

Some of the best deterrents lie in novelty; professionals will come with tools usually to smash D locks or cut cables, not both. You can make your D lock more effective by ‘filling’ it with as much bike as possible (thieves often use bottle jacks to break them open – they can’t if there isn’t room for one).

This yellow item probably isn’t that secure, but it’s effectiveness lies in the way it works: they’re sold online as disc brake locks for motorbikes and they have a plunger that latches through your brake disc, rendering the wheel unable to turn. In addition, there’s a piercing, vibration-activated alarm inside – so if the bike is handled roughly, it screams the place down.

It’s small, compact, thieves probably wont want to bother with it coupled with other locks, and it costs less than a tenner. What’s not to love?