Ultegra Di2 12speed cables
03-11-24, 04:28 AM
#1
Newbie
Thread Starter
Ultegra Di2 12speed cables
Hello everyone,
I have a bike with the newest Ultegra Di2 (12 Speed) and I want to update the lever firmware. So I need to wire the lever with the system. My Idea is to remove the cable from the front deraileur and wire a new cable with a junction Box to the lever. Now my question is, which Cable Type do I have. I know that there are 2 Types, the EW_SD300 and the EW_SD50. The EW_SD300 is more expensive. If I have the EW_SD300 installed, is it possible to get a junction that adapts the EW_SD300 to an EW_SD50 and put the EW_SD50 in my lever or do I need a EW_SD300 Cable to get the firware updating?
I have a bike with the newest Ultegra Di2 (12 Speed) and I want to update the lever firmware. So I need to wire the lever with the system. My Idea is to remove the cable from the front deraileur and wire a new cable with a junction Box to the lever. Now my question is, which Cable Type do I have. I know that there are 2 Types, the EW_SD300 and the EW_SD50. The EW_SD300 is more expensive. If I have the EW_SD300 installed, is it possible to get a junction that adapts the EW_SD300 to an EW_SD50 and put the EW_SD50 in my lever or do I need a EW_SD300 Cable to get the firware updating?
03-11-24, 07:07 AM
#2
Senior Member
Join Date: Oct 2008
Location: Northern NY...Brownville
Posts: 2,574
Bikes: Specialized Aethos, Specialized Diverge Comp E5
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 242 Post(s)
Liked 455 Times
in
266 Posts
https://www.nashbar.com/shimano-ewjc...jc302/p1298030
https://www.nashbar.com/shimano-ewsd...5304?v=1292457
These are the two components you need. Connect one end of the wire to the shifter and the junction to the other end. Connect the junction to the front der wire and you will connect that shifter to the etube app...switch the wire to the other shifter and repeat.
This is how I do it and it works great.
https://www.nashbar.com/shimano-ewsd...5304?v=1292457
These are the two components you need. Connect one end of the wire to the shifter and the junction to the other end. Connect the junction to the front der wire and you will connect that shifter to the etube app...switch the wire to the other shifter and repeat.
This is how I do it and it works great.
03-11-24, 07:28 AM
#3
I'm good to go!
Join Date: Jul 2017
Location: Mississippi
Posts: 14,992
Bikes: Tarmac Disc Comp Di2 - 2020
Mentioned: 51 Post(s)
Tagged: 0 Thread(s)
Quoted: 6196 Post(s)
Liked 4,811 Times
in
3,319 Posts
The guy that does this site seems to know....BetterShifting
03-11-24, 08:39 AM
#4
LR÷P=HR
Join Date: Sep 2019
Location: SF Bay Area
Posts: 2,180
Bikes: 1981 Holdsworth Special, 1993 C-dale MT3000 & 1996 F700CAD3, 2018 Cervelo R3 & 2022 R5, JustGo Runt, Ridley Oval, Kickr Bike 8-)
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 867 Post(s)
Liked 1,205 Times
in
694 Posts
If you know anyone with a SM-PCE02, it plugs directly into each brifter for updates.
I like having one, though most think of it as a shop tool.
Barry
I like having one, though most think of it as a shop tool.
Barry
03-11-24, 10:45 AM
#6
LR÷P=HR
Join Date: Sep 2019
Location: SF Bay Area
Posts: 2,180
Bikes: 1981 Holdsworth Special, 1993 C-dale MT3000 & 1996 F700CAD3, 2018 Cervelo R3 & 2022 R5, JustGo Runt, Ridley Oval, Kickr Bike 8-)
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 867 Post(s)
Liked 1,205 Times
in
694 Posts
The 12sp mechanical (rim) brifters are wired and not an issue for updates.
The 12sp Hydraulic brifters are capable of both wireless and wired.
When these are wired... no issue for updates
When these are wireless, some updates cannot be performed wirelessly and require the brifter to be temporarily wired.
Barry
The 12sp Hydraulic brifters are capable of both wireless and wired.
When these are wired... no issue for updates
When these are wireless, some updates cannot be performed wirelessly and require the brifter to be temporarily wired.
Barry
Likes For Barry2:
03-12-24, 06:44 AM
#7
Resident PIA
Join Date: Jul 2004
Location: City of Oaks, NC
Posts: 848
Bikes: Gunnar Roadie, Look 765 Optimum, Spesh Aethos
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 212 Post(s)
Liked 356 Times
in
186 Posts
Don’t know about anyone else’s situation but my battery is in the seat post I just pop it out and run a 1.2 meter Di2 wire from there to the lever and do the updates, then pop the seat post back in. It’s 1 bolt and I have the seatpost marked easy peasy.
.
.
__________________
--
Shad
I knew where I was when I wrote this
I don't know where I am now...
05 Gunnar Roadie Chorus/Record
67'er
--
Shad
I knew where I was when I wrote this
I don't know where I am now...
05 Gunnar Roadie Chorus/Record
67'er
