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Next generation of Dura-Ace Di2

Posted: Tue Mar 26, 2019 6:01 pm
by adilosnave
I keep poking around on here waiting to hear some rumors and maybe even sneak in some spy shots. Anyone have something to share?

Re: Next generation of Dura-Ace Di2

Posted: Tue Mar 26, 2019 7:17 pm
by Ritxis
News in April (An employee of a nearby store has an Shimano event in the month of April in Bilbao, Spain)

Re: Next generation of Dura-Ace Di2

Posted: Tue Mar 26, 2019 7:17 pm
by Weenie

Re: Next generation of Dura-Ace Di2

Posted: Tue Mar 26, 2019 7:25 pm
by fromtrektocolnago
I know nothing but would be shocked if they don't go wireless.

Re: Next generation of Dura-Ace Di2

Posted: Tue Mar 26, 2019 8:04 pm
by Ritxis
fromtrektocolnago wrote:
Tue Mar 26, 2019 7:25 pm
I know nothing but would be shocked if they don't go wireless.
I do not care if it is wireless or not.......

Re: Next generation of Dura-Ace Di2

Posted: Tue Mar 26, 2019 8:30 pm
by savechief
What makes you think that Shimano is going to do anything other than their typical 4 year update cycle for Dura Ace?
2004 - 7800
2008 - 7900
2012 - 9000
2016 - 9100
2020 -

Re: Next generation of Dura-Ace Di2

Posted: Tue Mar 26, 2019 8:47 pm
by TobinHatesYou
fromtrektocolnago wrote:
Tue Mar 26, 2019 7:25 pm
I know nothing but would be shocked if they don't go wireless.

Shimano cannot make derailleurs with batteries attached without infringing on SRAM's patents. In order to go fully wireless, they must be able to do that. The alternative is running wires to frame-mounted batteries, and at that point you may as well run one centrally located battery like Di2 and FSA WE do now. Another solution would be Shimano's dynamo pulley wheel + capacitors in the rear...not sure how they would handle the front.

In the meantime Shimano will continue to claim they aren't interested. They're attempts to get around the patents say otherwise.

Re: Next generation of Dura-Ace Di2

Posted: Tue Mar 26, 2019 8:48 pm
by spdntrxi
savechief wrote:
Tue Mar 26, 2019 8:30 pm
What makes you think that Shimano is going to do anything other than their typical 4 year update cycle for Dura Ace?
2004 - 7800
2008 - 7900
2012 - 9000
2016 - 9100
2020 -

as I am building a 9170 bike at the moment..... I was counting on them to stay the course. :thumbup:

Re: Next generation of Dura-Ace Di2

Posted: Tue Mar 26, 2019 8:55 pm
by TobinHatesYou
savechief wrote:
Tue Mar 26, 2019 8:30 pm
What makes you think that Shimano is going to do anything other than their typical 4 year update cycle for Dura Ace?
2004 - 7800
2008 - 7900
2012 - 9000
2016 - 9100
2020 -

To better match the staggered 3 year update cycles the bike manufacturers are settling on, and because sales volume is decreasing, so they need fresher product more often.

Re: Next generation of Dura-Ace Di2

Posted: Tue Mar 26, 2019 9:13 pm
by Hexsense
TobinHatesYou wrote:
Tue Mar 26, 2019 8:55 pm
To better match the staggered 3 year update cycles the bike manufacturers are settling on, and because sales volume is decreasing, so they need fresher product more often.
With amount of stock and demand of new XTR. I doubt their factory is ready yet. They might end up announcing product that they can not produce to meet demand for another year while at the same time people don't want their old product anymore. Doesn't sound like a good plan for me.

Re: Next generation of Dura-Ace Di2

Posted: Tue Mar 26, 2019 9:39 pm
by Ritxis
TobinHatesYou wrote:
Tue Mar 26, 2019 8:47 pm
fromtrektocolnago wrote:
Tue Mar 26, 2019 7:25 pm
I know nothing but would be shocked if they don't go wireless.

Shimano cannot make derailleurs with batteries attached without infringing on SRAM's patents. In order to go fully wireless, they must be able to do that. The alternative is running wires to frame-mounted batteries, and at that point you may as well run one centrally located battery like Di2 and FSA WE do now. Another solution would be Shimano's dynamo pulley wheel + capacitors in the rear...not sure how they would handle the front.

In the meantime Shimano will continue to claim they aren't interested. They're attempts to get around the patents say otherwise.
What kind of patents? A battery/anchor type Sram or any other type of battery/anchorage???
It will not be also that being the Di2 a more complex system, for other types of bike apart road and MTB, Shimano does not trust 100%, in a completely wireless system??

Re: Next generation of Dura-Ace Di2

Posted: Tue Mar 26, 2019 9:54 pm
by TobinHatesYou
Ritxis wrote:
Tue Mar 26, 2019 9:39 pm
TobinHatesYou wrote:
Tue Mar 26, 2019 8:47 pm
fromtrektocolnago wrote:
Tue Mar 26, 2019 7:25 pm
I know nothing but would be shocked if they don't go wireless.

Shimano cannot make derailleurs with batteries attached without infringing on SRAM's patents. In order to go fully wireless, they must be able to do that. The alternative is running wires to frame-mounted batteries, and at that point you may as well run one centrally located battery like Di2 and FSA WE do now. Another solution would be Shimano's dynamo pulley wheel + capacitors in the rear...not sure how they would handle the front.

In the meantime Shimano will continue to claim they aren't interested. They're attempts to get around the patents say otherwise.
What kind of patents? A battery/anchor type Sram or any other type of battery/anchorage???
It will not be also that being the Di2 a more complex system, for other types of bike apart road and MTB, Shimano does not trust 100%, in a completely wireless system??

In the patents for the physical designs of the eTap RD and FD, the description includes directly attaching batteries to the structural members.

Re: Next generation of Dura-Ace Di2

Posted: Tue Mar 26, 2019 11:55 pm
by pdlpsher1
I'm geting a new tandem frame and I've opted for the Di2 option, including a custom two-piece eccentric that allows a wire to pass through captain's BB. Running a Di2 wire on the tandem is more complicated. Wireless would be nice on a tandem but there are too many hurdles to overcome to adopt AXS on a tandem. I'm not worried about any new product announcements by Shimano. It's gonna be a while before the new wares hit the shelves. In the meantime I want to enjoy what's available today.

Re: Next generation of Dura-Ace Di2

Posted: Wed Mar 27, 2019 12:12 am
by moyboy
Yup they have to get XTR back on track.... i think it's the same factory for their top tier parts. Bad enough the XTR crank is not the announced one and Sylence is on the shelf for another generation.
Hexsense wrote:
Tue Mar 26, 2019 9:13 pm
TobinHatesYou wrote:
Tue Mar 26, 2019 8:55 pm
To better match the staggered 3 year update cycles the bike manufacturers are settling on, and because sales volume is decreasing, so they need fresher product more often.
With amount of stock and demand of new XTR. I doubt their factory is ready yet. They might end up announcing product that they can not produce to meet demand for another year while at the same time people don't want their old product anymore. Doesn't sound like a good plan for me.

Re: Next generation of Dura-Ace Di2

Posted: Wed Mar 27, 2019 2:35 am
by Berzin1
savechief wrote:
Tue Mar 26, 2019 8:30 pm
What makes you think that Shimano is going to do anything other than their typical 4 year update cycle for Dura Ace?
Becaue waiting two years to catch up to the other company's 12-speed gruppos is not in their economic self-interest.

Re: Next generation of Dura-Ace Di2

Posted: Wed Mar 27, 2019 3:15 am
by spdntrxi
wait 2 years and bust out 13speed

Re: Next generation of Dura-Ace Di2

Posted: Wed Mar 27, 2019 3:15 am
by Weenie