Next generation of Dura-Ace Di2

Discuss light weight issues concerning road bikes & parts.
ooo
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by ooo

Shimano just released gravel groups, they don't need to overlap road race group features with gravel group features
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borist
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Joined: Wed Sep 02, 2015 2:19 am
Location: LA, CA

by borist

CyclingTips released a podcast that is largely about current/future tech, but there are a few minutes of next gen DA discussion. No real news, but interesting points:

- Shimano are focusing on perfecting Disc Brakes, rather than shifting. Their view is that the shifting has less to gain than disc brakes, so any big updates will likely focus on discs and the shifting will not see major updates.
- From a business perspective, Shimano are likely focussing more on e-bikes given this is the largest market for them. The enthusiast market is well developed, and they are likely to gain more by allocating dev/eng resources to e-bikes and other emerging products.

https://cyclingtips.com/2020/01/nerd-al ... he-future/

by Weenie


ooo
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by ooo

ooo wrote:
Wed Jan 08, 2020 3:56 am
I find is interesting, that Shimano never released R9100 or R8000 branded hubs (rim brake or disc brake)
May be they are thinking about thru-axles as single standard for both rim and disc brakes?
Found patents on Dura-Ace (straight pull) front thru-axle rim brake hub... Thruaxle + QR adapter:

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ooo
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by ooo

So far Shimano described almost all variations of semi-wireless designs in recent patents

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robbosmans
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by robbosmans

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I think it will be semi wireless


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Ritxis
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by Ritxis

robbosmans wrote:
Sat Jan 11, 2020 4:43 pm
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I think it will be semi wireless


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:lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol:

the phantom cable, below the red line
ca.jpg
ca.jpg (9.48 KiB) Viewed 1629 times
not semi wireless, normal RD-R9150

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robbosmans
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by robbosmans

Oops


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robertbb
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Location: Melbourne, Australia

by robertbb

An employee at a major bicycle manufacturer spilt the beans to me earlier. He's seen a presentation by Shimano. He didn't give any details, but when I asked he nodded.

Next gen is semi-wireless. Take it to the bank.

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pdlpsher1
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by pdlpsher1

Does it have the 10t cog?

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madik
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Joined: Sun Jan 08, 2017 12:44 pm

by madik

robertbb wrote:
Tue Jan 14, 2020 5:55 am
An employee at a major bicycle manufacturer spilt the beans to me earlier. He's seen a presentation by Shimano. He didn't give any details, but when I asked he nodded.

Next gen is semi-wireless. Take it to the bank.
Sounds good. Semi-wireless is probably the best solution for all.
Functionality > Performance > Weight

LiquidCooled
Posts: 196
Joined: Mon Oct 02, 2017 5:46 am

by LiquidCooled

madik wrote:Sounds good. Semi-wireless is probably the best solution for all.
Agreed. I’d prefer having an internal battery with wires to the front and rear derailleurs. Way better than those fugly battery tumors on the sram derailleurs. Wireless shifters are fine (saves the one-time non-trivial task of wiring handlebars internally if you want to use a bar-end junction box).
2017 Giant TCR Advanced Pro 0 Disc
2003 Cannondale R1000 (CAAD7)

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corky
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by corky

And doesn't violate SRAM patents

spdntrxi
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by spdntrxi

LiquidCooled wrote:
Tue Jan 14, 2020 11:42 am
madik wrote:Sounds good. Semi-wireless is probably the best solution for all.
Agreed. I’d prefer having an internal battery with wires to the front and rear derailleurs. Way better than those fugly battery tumors on the sram derailleurs. Wireless shifters are fine (saves the one-time non-trivial task of wiring handlebars internally if you want to use a bar-end junction box).
exactly this.... my perference as well.
2019 BMC TM01 Road UCI config 7.36kg

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Dan Gerous
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by Dan Gerous

spdntrxi wrote:
Tue Jan 14, 2020 7:11 pm
LiquidCooled wrote:
Tue Jan 14, 2020 11:42 am
madik wrote:Sounds good. Semi-wireless is probably the best solution for all.
Agreed. I’d prefer having an internal battery with wires to the front and rear derailleurs. Way better than those fugly battery tumors on the sram derailleurs. Wireless shifters are fine (saves the one-time non-trivial task of wiring handlebars internally if you want to use a bar-end junction box).
exactly this.... my perference as well.
Just like FSA WE... except better.

by Weenie


rides4beer
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Location: SC

by rides4beer

ipenguinking wrote:
Wed Jan 08, 2020 3:16 am
One other thing I wish Shimano can improve is drivetrain noise. The 9150 on my own C60 is so noisy comparing to the SR12 on a friend's bike I've been borrowing. The DA9000 I had before is also noisy.
I've found the opposite, my r8000 and r7000 drivetrains are very quiet, while a friend's SRAM Force AXS is really noisy.

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