One thing that has been bothering me is that two of my bikes have quick release skewers and disc brakes. Although unlikely, it is possible that the QR can come loose. Most folks are shifting to through axle which is more reliable. However, it turns out that you can convert from QR to thru axle […]

Well this had lots of parts but is pretty cool. Basically with the older Ultegra Di2 system, you need to add a wireless transmitter to update it and for it to give you gear and other information. It’s not really documented how to make this all work, so here’s a quick guide: DN101 Battery. First […]