Same is not so easy, to move from 11 to 12 the limitation will be in the engine of change, will not be a thing of firmware.........Lelandjt wrote: ↑Tue Mar 27, 2018 12:57 amWell, where does the "brain" reside in etap? With Di2 it's in the battery. I suspect it's in the derailleurs with etap in which case the shifter doesn't know if it's operating 11 or 12 speed or which derailleur it's commanding. It's just sending a signal to the derailleur to go up or down. So what I'm saying is this derailleur should work with 11spd road shifters unless Sram specifically made it so they won't get along. I don't think they'd do that.
Eagle eTap
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The rear deailleur is acting as master in an etap setup, my guess is that the rear derailleur is where the brain resides.Lelandjt wrote: ↑Tue Mar 27, 2018 12:57 amWell, where does the "brain" reside in etap? With Di2 it's in the battery. I suspect it's in the derailleurs with etap in which case the shifter doesn't know if it's operating 11 or 12 speed or which derailleur it's commanding. It's just sending a signal to the derailleur to go up or down. So what I'm saying is this derailleur should work with 11spd road shifters unless Sram specifically made it so they won't get along. I don't think they'd do that.
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CX bikes to get the 1x12 eTap before anything else?
Rikulau V9 DB Custom < BMC TM02 < Litespeed T1sl Disc < Giant Propel Advanced SL Disc 1 < Propel Adv < TCR Adv SL Disc < KTM Revelator Sky < CAAD 12 Disc < Domane S Disc < Alize < CAAD 10
jlok, there are too many 12s freehub body designs and Sram wants compatibility with "12s road wheels for shimano"
It's risky ($$) to produce 12s CX cassette for one 12s freehub body design, before making final decision about 12s ROAD freehub body design
viewtopic.php?f=4&t=153264
this is not a problem for 12s etap eagle, of course
It's risky ($$) to produce 12s CX cassette for one 12s freehub body design, before making final decision about 12s ROAD freehub body design
viewtopic.php?f=4&t=153264
this is not a problem for 12s etap eagle, of course
'
ok... so it's basically more than 1 year from now before we could see retail channel available with new 2x12 etap as SRAM need to catch up with cassette design for new road 12x free hub body proposed by Shimano.
Rikulau V9 DB Custom < BMC TM02 < Litespeed T1sl Disc < Giant Propel Advanced SL Disc 1 < Propel Adv < TCR Adv SL Disc < KTM Revelator Sky < CAAD 12 Disc < Domane S Disc < Alize < CAAD 10
Makes sense but I wonder why Shimano has no problem pairing a clutch with Di2. Refresh my memory, did Nino race a couple WCs on etap until that start line failure and then use mechanical shifting for the resf of the season? Maybe there's problems besides battery life.
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[] <— eTap Battery.
[ <- Shimano - Battery -> ]
[ <- Shimano - Battery -> ]
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