Dura-Ace R9200

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Maddie
Posts: 1532
Joined: Tue Oct 17, 2017 5:44 am

by Maddie

I will not route cables to the shifters. If the battery lasts a bit longer with them is insignificant for me. Garmin tells me battery level. If it's time to charge the battery, I will do so.

by Weenie


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mapaha2810
Posts: 28
Joined: Wed Sep 01, 2021 4:54 pm
Location: Münster, Germany

by mapaha2810

BigBoyND wrote:
Fri Oct 15, 2021 3:21 am
So how many people are planning to run the optional wire from the shifters? Is it confirmed that the battery life doubles by doing so?

I don't mind running an extra wire before the BB is installed.

Weight wise, it looks like no wire is lighter: 2 x 1.8 grams (CR1632 batteries) vs. 16 grams (1600mm EW-SD300 cable)
You will need three additional cables and an additonal junction box: One cable per STI, a junction box where those two cables enter and another cable from the junction box to the battery.

I plan on going wireless. And - even though I planned on going for the DA lever set - I bought ULT in the end... I think I'd rather save those 93 grams by some healthy eating instead :D my ULT calipers with preinstalled hoses are even slighlty lighter than expected (didn't weigh the levers yet, since I didn't want to remove the plastic protection before I really install them)
Attachments
di2_w_cables.PNG
IMG_20211014_165648.jpg
IMG_20211014_165835.jpg

BigBoyND
Posts: 1347
Joined: Mon May 31, 2021 1:51 am
Location: Berlin, DE

by BigBoyND

Three cables and a junction? Nvm that, going with batteries. haha

Wow congrats on getting your parts already!

Maddie
Posts: 1532
Joined: Tue Oct 17, 2017 5:44 am

by Maddie

@mapaha2810, now only waiting for cassette and derailleurs I guess?

mapaha2810
Posts: 28
Joined: Wed Sep 01, 2021 4:54 pm
Location: Münster, Germany

by mapaha2810

Maddie wrote:
Fri Oct 15, 2021 9:17 am
@mapaha2810, now only waiting for cassette and derailleurs I guess?
So far, I only have the new battery, the new charging cable, electric cables and the levers+calipers set (from bike24). I preordered everything else from Rose. Despite the front derailleur... found no shop that has the FD available for pre-order. But in the end I could ride 1by for a while :D

Bike24 also has the 50/34 crankset available, but I am waiting for 52/36

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ms6073
Posts: 4289
Joined: Fri Jul 23, 2004 8:24 pm
Location: Houston, Texas

by ms6073

mapaha2810 wrote:
Fri Oct 15, 2021 9:05 am
You will need three additional cables and an additonal junction box
To bad there isn't an equivalent of the shimano jc130 di2 y-connector cable for R9200/R8100.
- Michael
"People should stop expecting normal from me... seriously, we all know it's never going to happen"

mapaha2810
Posts: 28
Joined: Wed Sep 01, 2021 4:54 pm
Location: Münster, Germany

by mapaha2810

ms6073 wrote:
Fri Oct 15, 2021 4:47 pm
mapaha2810 wrote:
Fri Oct 15, 2021 9:05 am
You will need three additional cables and an additonal junction box
To bad there isn't an equivalent of the shimano jc130 di2 y-connector cable for R9200/R8100.
just looked it up in the manual again: there is a second option with "only" two additional cables. See attachment
Attachments
di2-wiring.PNG

Karvalo
Posts: 3444
Joined: Fri Aug 10, 2018 6:40 pm

by Karvalo

mapaha2810 wrote:
Fri Oct 15, 2021 5:21 pm
ms6073 wrote:
Fri Oct 15, 2021 4:47 pm
mapaha2810 wrote:
Fri Oct 15, 2021 9:05 am
You will need three additional cables and an additonal junction box
To bad there isn't an equivalent of the shimano jc130 di2 y-connector cable for R9200/R8100.
just looked it up in the manual again: there is a second option with "only" two additional cables. See attachment
Just be aware that Hydro only has 2 ports so you'd forgo the satellite shifter capacity that diagram shows with the 3 port cable brake shifters.

ooo
Posts: 1590
Joined: Sat May 21, 2016 12:59 pm

by ooo

mapaha2810 wrote:
Fri Oct 15, 2021 5:21 pm
just looked it up in the manual again: there is a second option with "only" two additional cables. See attachment
This is not an option, because hydro shifter have single e-tube port,
second port is non-e-tube basic port for non-etube satellite shifter:

Image
ms6073 wrote:
Fri Oct 15, 2021 4:47 pm
mapaha2810 wrote:
Fri Oct 15, 2021 9:05 am
You will need three additional cables and an additonal junction box
To bad there isn't an equivalent of the shimano jc130 di2 y-connector cable for R9200/R8100.
Use new EW-JC304 mini-junction + 3x EW-SD300 wires (±EW-JC302) instead of EW-JC130 Y-splitter, it will look less bulky and cost the same:

Image

you can connect 1600mm wire into EW-JC304 directly if this mini-junction will be placed outside of bar; or replicate Y-splitter function:
you can connect 1600mm wire into additional EW-JC302 passthru-junction that will be connected to EW-JC304 that is placed inside the bar

Image
'

Kingstonian
Posts: 38
Joined: Sat Jun 27, 2020 11:59 am

by Kingstonian

Can't understand why anyone would want to run the additional wires and junction box, seems counterintuitive to me.

BdaGhisallo
Posts: 3261
Joined: Wed Mar 17, 2004 1:38 pm

by BdaGhisallo

Kingstonian wrote:
Sat Oct 16, 2021 9:26 pm
Can't understand why anyone would want to run the additional wires and junction box, seems counterintuitive to me.
Longer battery life?

Broady
Posts: 678
Joined: Thu Jan 03, 2013 5:02 pm

by Broady

Saw this in the flesh today, looks super good, can't wait to get it eventually...

BigBoyND
Posts: 1347
Joined: Mon May 31, 2021 1:51 am
Location: Berlin, DE

by BigBoyND

Kingstonian wrote:
Sat Oct 16, 2021 9:26 pm
Can't understand why anyone would want to run the additional wires and junction box, seems counterintuitive to me.
- Longer battery life (charging interval)
- No need to swap button cell batteries ever
- In theory, reliability of a wired system

You only run wires once, so it's no big deal

ooo
Posts: 1590
Joined: Sat May 21, 2016 12:59 pm

by ooo

to reduce risks during firmware updates
weak €1 CR1632 battery can ruin €500 shifter during update
'

Ritxis
Posts: 1119
Joined: Fri Jun 01, 2012 3:00 pm
Location: San Sebastian

by Ritxis

ooo wrote:
Sun Oct 17, 2021 11:11 am
to reduce risks during firmware updates
weak €1 CR1632 battery can ruin €500 shifter during update
It would be extremely serious for Shimano to fail to recover a component (very expensive in relation to what it will cost to produce it) due to a connection failure during a wireless update.

by Weenie


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