R9250 compatiblity, crankset weight changes FC-R9100 vs FC-R9200

[kode54]

I thought that the junction was built into the rear mech. Isn’t that where the lights are? And also where the plug is to charge?

[TerryDi2C]

Charge via the rear derailleur, using the EW-EC300 charging cable.. yes

[henau212]

I thought that the junction was built into the rear mech. Isn’t that where the lights are? And also where the plug is to charge?

https://pdfaiw.uspto.gov/.aiw?PageNum=0 ... %3Dshimano

I was talking about this patent. Clearly, charging is done via the RD. Nonetheless, the RD is connected to a junction box in the link above.

[ooo]

junction is not needed. this patent describe situation with single port battery, but new battery will be triple port.

[jever98]

3 ports for fd, rd and dropper?

[ooo]

3rd port for wired connection with:
- 12s rim brake drop bar di2 shift-brake levers
- old rim brake tt bar di2 shift-brake levers
- old disc brake tt bar di2 shift-brake levers
- at least one type of the old tt di2 shifters (without brakes)

[BigBoyND]

With these additional ports and compatibility with old TT and rim Di2 levers, do you think there is a chance we could just upgrade RD and cassette to get 12sp using the rest of our parts from R9100?

[ooo]

approximate success chances for firmware compatibility:
old fd + new rd = 0%
old battery + new rd = 10%-50%
old sti + new rd + new battery = 60%-90%

[ooo]

12s ultegra scott build:

[FlatlandClimber]

This down tube looks so terrible

[pmprego]

zipp 303 wheels??

[ViperFFM]

thats an expensive and very confusing toilet with those wheels

[ooo]

wheels??

new ultegra branded wheels (11/12 speed compatible)

[moock]

Interesting. Do you know if there will be new rim wheelsets?

[ooo]

no ultegra rim brake wheelset
dura-ace will have rim brake wheelset, compatible with 12 speed cassettes only