Shimano road 12 speed?

[PacNW2Ford]

If the cassettes start with a 10T cog, they’re probably MicroSpline as I don’t think a 10T will fit on the present freehub body. Why we need a 10T is a different question.

[Coffee Rider]

Originally Posted by PacNW2Ford

Why we need a 10T is a different question.

I think we don't, though I realize my opinion doesn't count for much on this.

[Black Dog]

Originally Posted by Coffee Rider

I think we don't, though I realize my opinion doesn't count for much on this.

Agreed on the part about the 10 cog not being needed.

[R3awak3n]

I think 10 is needed if they have 1x options but even with a 46/30 crank, having the 10 could be nice for someone.

[PacNW2Ford]

I miss the cassettes that started with a 12T! Sometimes even a 13T...

[Matt92037]

The prior Shimano freehub design had a good run, but it will be replaced with the upcomming 12sp rollout. I just hope that it is not something different than the current Microspline. Remember SRAM has a different XD hub for road and mountain. I would be happy if Shimano uses the same for both road and mountain. Something tells me this will be the case.

[bfd]

Originally Posted by PacNW2Ford

I miss the cassettes that started with a 12T! Sometimes even a 13T...

Currently, Shimano only sells the following 11 speed cassettes with a 12t:

12-25 DA, Ultegra, 105
12-28 DA

No 13t, but there is an Ultegra 14-25

For 11 speed, Campy sells the Centaur in 12-32, Potenza in 12-27

That appears to be it!

Good Luck!

[FlashUNC]

Originally Posted by R3awak3n

I think 10 is needed if they have 1x options but even with a 46/30 crank, having the 10 could be nice for someone.

46x10 is very nice.

[Mark McM]

Originally Posted by bfd

For 11 speed, Campy sells the Centaur in 12-32, Potenza in 12-27

That appears to be it!

Campy 11spd cassettes are also available in 12-25 & 12-29. So, roughly half of the 11spd cassetts start with 11 (11-23, 11-25, 11-27, 11-29, 11-32), and the other half start with 12 (12-25, 12-27, 12-29, 12-32).

Sadly, Campy doesn't make one in the 13-32 size I would find ideal, but Miche makes a Campy compatible cassette in this size.

[9tubes]

Shimano? I think I remember that brand. What happened to them?

[sethjs]

Anyone have any sense on timing for the new Di2 announcement? Sounds like some details (partially wireless, not the current freehub) are starting to trickle out...

[Coffee Rider]

Originally Posted by sethjs

Anyone have any sense on timing for the new Di2 announcement? Sounds like some details (partially wireless, not the current freehub) are starting to trickle out...

Based on what's happened in the past, the expectation was it would be on display at the tour with limited availability then showing up on 2021 bikes with aftermarket availability ramping up after that. I recall with the last introduction of the hydraulic stuff, etc., the order of prioritization was big OE accounts, then aftermarket, then smaller OE accounts.

FWIW, I am planning on building up a frame that I don't yet have with the new group and don't expect I'll be able to get my hands on one until 2021.

[pdmtong]

Partial wireless...so the shifters wirelessly communicate to the FD and RD while those two pieces remain internally wired to the battery?

[FlashUNC]

Originally Posted by pdmtong

Partial wireless...so the shifters wirelessly communicate to the FD and RD while those two pieces remain internally wired to the battery?

That'd be my guess. Similar to the FSA system.

[Coffee Rider]

Originally Posted by FlashUNC

That'd be my guess. Similar to the FSA system.

That's my understanding as well.