First things first, mods please delete this if you think it’s inappropriate.
In the spirit of threads gone by (I’m thinking mostly about Trout’s lights and the m970 endcap project, although I’m sure there are others!) I’ve been working away on a bike tracking solution for quite a while now, and on Christmas Eve finally took delivery of the parts for the first proper batch!
The basic idea is to conceal an Apple AirTag as discreetly as possibly inside your bike (in a location where the signal can still escape) so that if your bike is stolen you can easily track it down and get it back. It turns out that the bottom a tapered steerer tube is the ideal place, and so the BikeTag Trail was born. It’s a simple plastic widget with an expanding washer that installs securely into your steerer tube, holding the AirTag in place. It also stops it filling up with muck.
The AirTags are really great for this purpose as they have a mega battery life (>1 year) and don’t require an expensive subscription to run. In years gone by I’ve looked in quite some detail (knocking up PCBs etc) at making a GPS based tracker, but the physics of GPS make it very hard to conceal on a bike, and that’s before you get into subscription costs and battery life. When the AirTag came along I knew it was perfect.
Anyway, you can find them on eBay.
Hope everyone’s had a great Christmas and is getting out on the bike today!