Sequential shifting on road wouldn't be too difficult to implement.
Example: To enter sequential mode, just hold all 4 buttons on the road shifters for 3 seconds. Do the reverse to exit.
How the sequential button controls work can be programmed in the computer interface software.
It would add a lot of functionality into what is already very good !
Looks like you just program the chainring upshift when you want, e.g going from lowest ratio, your 6-7 shift will actually be from small ring, to big ring and 6th sprocket to 4th. Then you program a different sequence on the way down. Maybe holding on to the big ring all the way down to the 2nd or 3rd sprocket, then doing a big-small shift and a shifting across to your 4th or 5th sprocket.maxxevv wrote:Its not explicitly clear but I believe there is some interface within the PC/Computer software that allows you to key in/ select your gear/cassette stack numbers. And the system probably can calculate the sequence for any ratio accordingly.
Dropping in and out of sequential mode *might* require a software hack. Unless shimano have the functionality anyway, i would hope they do as it could well be needed for racing, if/when you get carcked up with leaves and mud, running big/big combinations leads to a lot less skipping gears, or bending a tooth on your big ring, sticking to the inner might be required.
If it is, it might be just a firmware upgrade. Or it might be a small module add-on with firmware upgrade away.
I have no idea if it is, but that's the case, it would be wonderful from a consumer point of view.
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bm0p700f wrote:What will be coming is automatic shifting, all you need is a power meter and cadence sensor and the bike will shift itself. Sequential shifting is probably on the cards and I can see why it had debuts on MTB's first as shifting and controlling where the front wheel goes is a bit more demanding than it is on a road bike as the changes in gradient and change in track surface off road are far more rapid than on road.
Actually, Shimano tested that out some 15 years ago. They commissioned a project that used the then available Mektronic system coupled with an SRM.
We should expect them to release such an option together with their integrated powermeter for which there was a patent revealed recently.
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