I love bicycle tech. Almost everything was invented in the 1890s, and every couple of decades someone tries another old idea.

https://onlinebicyclemuseum.co.uk/tour/cyclemotors-motorcycl...

> Almost everything was invented in the 1890s, and every couple of decades someone tries another old idea.

What about wireless shifting systems like Di2?

> wireless shifting systems like Di2

Is it really wireless?

The SRAM one is.

SRAM Automatix. ;-)