Works with mechanical GRX 2x12-speed components The 2x12-speed Di2 groupset works with the same chain, cassette, crankset and brake calipers as used by mechanical GRX 2x12-speed. It’s a similar ...

Is a new SRAM Force AXS groupset around the corner? It sure looks like it, with updated levers borrowed from Red AXS and new derailleurs.

Dura Ace is supposed to be better, but I’m not sure how much better it can be (at least as far as mechanical shifting goes … I’ve yet to try Di2). And if Ultegra is this good, it makes me wonder how ...

In this case, Shimano went off book with their DI2 groupset, leaving [kwakeham] with a reverse engineering job on his hands. [kwakeham] gives us a great example of how to approach reverse engineering.

The Selle Italia SLR Boost Superflow saddle is a treat when you’re on it too, while the shifting comes from Shimano’s Ultegra Di2 groupset, and that as it turns out is one of the highlights here.