They join SRAM in the 12 speed arena
more details here https://road.shimano.com/uk/stories/science-of-speed
The “old” versions may reduce in price but as supplies are limited at present this may not happen?
Ive got Ultegra Di2 on one of my bikes and it is something to behold so I think any improvements may be marginal and perhaps the biggest benefit will be the smoothness of shifting as there will be smaller gaps between the different ratios.
more details here https://road.shimano.com/uk/stories/science-of-speed
The “old” versions may reduce in price but as supplies are limited at present this may not happen?
Ive got Ultegra Di2 on one of my bikes and it is something to behold so I think any improvements may be marginal and perhaps the biggest benefit will be the smoothness of shifting as there will be smaller gaps between the different ratios.