Skip to main content

Questions tagged [shimano-di2]

For questions about Shimano's Di2 (from "Digital Integrated Intelligence") electronic shifting system.

Filter by
Sorted by
Tagged with
2 votes
0 answers
34 views

Setup Di2 R9150 front derailleur

I changed my front rings from Shimano to another brand. Therefore the front derailleur does not fit right and needs to be adjusted. First things I did is fetch the official Shimano documentation (...
Rwanou's user avatar
  • 427
4 votes
2 answers
414 views

Would electric shifting improve Shimano Alfine 8 ebike durability

I'm considering buying a powerful e-bike (Zen Photon Pro) and installing a Shimano Alfine 8, but I'm worried that the powerful mid drive motor might damage the hub. Would using Di2 electric shifting ...
Peachy's user avatar
  • 617
9 votes
2 answers
235 views

Are high / low limit screws necessary with shimano di2 rear derailleurs?

On mechanical RDs, limit screws that are too loose will allow it to travel into the spokes or the chain stay on excess cable pull. However with electronic RDs, its state is known at all times. ...
No_name's user avatar
  • 319
3 votes
1 answer
353 views

Is Shimano GRX Di2 Bluetooth compatible?

Can I connect Shimano GRX Di2 via Bluetooth to E tube project software?
Steve Simpson's user avatar
5 votes
1 answer
566 views

Why is my bike making a grinding and clicking noise?

I recently received my new Canyon Grizl CF SLX 8 with a GRX Di2 2x11 groupset. Fresh out of the box I put it in my stand to go through the gears. I immediately noticed a constant clicking noise like ...
Jesper Sommer Jense's user avatar
0 votes
1 answer
588 views

Feasibility of upgrading a recent bike from a mechanical to an electronic groupset

A frequently asked question on this site is doing a significant component upgrade on a older bike. The answer is invariably that it is either infeasible, uneconomical, or both. Now that the road bike ...
Sam7919's user avatar
  • 10.3k
3 votes
1 answer
5k views

Upgrading a 105 R7000 to 105 di2 R7100

I got a road bike with the Shimano 105 R7000 groupset (including Shimano 105 R7000 52/36 crank, Shimano 105 R7020 hydraulic brakes and the cassette HG700 11-34 11s). I would like to upgrade it to the ...
Bob's user avatar
  • 302
3 votes
2 answers
1k views

Can I change small chainring to 30T with a 50T large ring on DI2? The mechanic says yes, just the shifting would be a tad slower on front derailleur

I’m looking at buying a used Orbe Orca complete with power meters and Ultegra Di2. The front rings are 50/34. I asked if the Di2 could handle 50/30 and was told yes but the shifting would just be a ...
GregG's user avatar
  • 31
5 votes
3 answers
753 views

Updating Shimano R8000 chainset from 50/34 to 50/39

I've seen this question about making the same change (50/34 to 50/39) on a Shimano Sora chainset, but I am asking specifically about Ultegra R8000. I have a bike with Ultegra R8070 (Di2, hydraulic ...
user7761803's user avatar
7 votes
1 answer
1k views

The pulley is not close enough to the largest sprocket even when b-screw is all the way out

I have a new bike with Shimano Ultegra di2 12sp and 11-34 cassette. Following Shimano's installation instruction, with largest sprocket and small chain ring, I cannot move the upper pulley close ...
Ning Wang's user avatar
  • 249
4 votes
1 answer
997 views

Stripped reach adjustment screw on GRX RX 815 levers

In trying to decrease the brake lever reach on my GRX Di2 shifters, I seem to have stripped the 2mm hex screws. They are located in an awkward position on the top of the shifters: https://si.shimano....
Rankeya's user avatar
  • 141
1 vote
1 answer
220 views

Di2 with 2 Junction A boxes

Is it possible to use 2 junction A boxes in Di2 setup (RS910 and EW90) .If you ask why i need a longer cable and i have 2 shorter cables. I wish yo extend the cable with a spare EW90 junction A.
Umut Birey's user avatar
0 votes
2 answers
112 views

Which electronic shifter to choose?

After a good old fashioned crash because of jumping rear gears I think I am ready to make the move to an electronic shifter/derailleur. Currently I have a 1x10 setup with internal routing in the frame ...
Adam Jones's user avatar
1 vote
1 answer
279 views

How do you adjust a first gen Di2 for the Wahoo Kickr?

I have a first gen Dura-Ace Di2 and recently switched from a wheel-on smart trainer to the Wahoo Kickr. I've replaced the 11-speed cassette that came with the Kickr to the same 10-speed cassette as I ...
RosePumpkin's user avatar
5 votes
0 answers
444 views

No LED on Junction Box on 2018 di2 8050 - But fully functioning

My 2018 di2 8050 is fully functioning as it should. Battery all good holding charge and i can charge battery ok using SM-BCR2. Just no lights on junction box when i hold any gear change lever for 5 ...
ian's user avatar
  • 51
3 votes
1 answer
4k views

Swapping a 12 speed 11-30t to 11-34t cassette Ultegra

I currently have a 12 speed 11-30t cassette on the back and 35x52 crank upfront. If I change to a 11-34t cassette, do I need to adjust anything? (for example RD adjustment if so, what should I adjust. ...
Yusuf's user avatar
  • 31
4 votes
4 answers
6k views

Ultegra Di2 rear shifting randomly stops working

I've been chasing this ghost for a past 2 weeks now. I own a road bike with Ultegra di2 and rear shifting stopped working (kind of) 2 weeks ago. You press lever, lights on junction box illuminates ...
Kelb56's user avatar
  • 141
3 votes
1 answer
3k views

How to identify model of Shimano levers/brifters?

Sticky Shimano Brake Hoods How do I find out what brake hoods I have on Shimano levers? Mine have become tacky and sticky and adhere to my gloves! I have Di2 Ultegra and not sure if the levers are ST-...
AlanWood's user avatar
3 votes
3 answers
1k views

Shimano DI2 GRX shifter not working

I purchased my bicycle with a GRX DI2 1x11v groupset. Since the bike had an operational left lever, I bought a cable and connected it to the system so I can change the rear derailleur with either hand....
Gigas10's user avatar
  • 31
4 votes
1 answer
763 views

Is the EW-SD50 connector exclusive to Shimano?

I have a broken EW-SD50 cable. I need a new plug/ connector. Is this a proprietary part from Shimano, or is it an electric component that can be sourced elsewhere?
bjornte's user avatar
  • 267
2 votes
2 answers
2k views

How to reattach DI2 battery mount inside downtube of Canyon Endurace?

In the process of looking for the charging port for my Canyon Endurace, I stupidly unscrewed the two screws that hold the battery mount to the inside of the frame, because I thought the piece of ...
tklodd's user avatar
  • 485
7 votes
3 answers
698 views

Are there any electronic shifters that decide front/back for you?

Are there any road bike electronic shifting systems out there currently that only have a single up and down shifter lever and use a computer to make the decision of whether to shift on the rear ...
kloddant's user avatar
4 votes
2 answers
3k views

Shimano shift levers for small hands (r7025 v.s. GRX v.s. di2)

I have relatively small hands (fitting men's S gloves). Though mostly fine with the 105 r7020 shift levers after minimizing the reach, I never feel really comfortable or confident. I'm wondering if I ...
Ning Wang's user avatar
  • 249
5 votes
3 answers
4k views

Shimano Dura Ace 12 speed to 11 speed Di2 shifter compatibility

Let's say I have a 9170 Di2 11 speed group and want to update to 9200 12 speed keeping what I can. That means a new RD, battery and wires are a must. Shimano claims the old 11 speed Di2 time trial ...
Klaster_1 Нет войне's user avatar
1 vote
1 answer
941 views

Installation issues using new Shimano EP8 motor and cycling computer and Di2

I am busy building an ebike with Shimano components, but I would like to know how to connect all of these components. I have gone through quite a lot of manuals on the Shimano website and e-tube ...
Gerome Schoeman's user avatar
2 votes
1 answer
522 views

Can Di2 only be tested as a complete setup?

I'm having problem testing my Di2 setup. Long story short, I got a pair of used but in very good condition Dura Ace Di2 9070 brifters for a cheap price. I then bought a new Di2 cable set with external ...
Sir Christopher McFarlane's user avatar
4 votes
3 answers
3k views

Sticky/Not fully returning ultegra r8070 brake lever

Got this used di2 equipped bike with what seemed to be just a spongy front brake. Bleeding as per manual. Still "mushy". Emptied the line and disconnected the hose. The lever just don't ...
Michael Tabolsky's user avatar
4 votes
2 answers
3k views

GRX Di2 front derailleur compatibility with Ultegra 2x crankset

Researching an upgrade to GRX Di2, am aware from this forum (as well as Shimano) that the GRX 2x crankset is pushed 2.5 mm outboard and thus requires a GRX FD. However, what about the opposite: using ...
Douglas Wise's user avatar
2 votes
1 answer
673 views

Troubleshooting Ultegra Di2

I went for a ride in Zwift, afterwards, I thought I'd check for firmware updates, there was one, I flashed it, disconnected the bike from the computer. I then swapped out a cassette, went into change ...
unn's user avatar
  • 151
2 votes
2 answers
1k views

Are all rear DI2 shifters / derailleurs / internal gear hubs interchangeable?

I'm specifically talking about rear shifters.... Can I mix and match any of Shimano's DI2 shifters with rear derailleurs and internal geared hubs? Shimano makes several DI2 shifters integrated ...
tir38's user avatar
  • 1,070
1 vote
1 answer
968 views

Shimano Di2 Bleed Screw problem

My bleed screw has become damaged and I need a new one. My shifter is Shimano R8070 which according to the spec, the part number should be Y00898030, the screw turned up but it is too small, as in the ...
Alan Dale's user avatar
2 votes
0 answers
2k views

Is my right DI2 shifter bad? It will shift "up" but not "down"

The left shifter and front derailleur work fine. The right shifter works fine if I shift to a smaller gear; the bike does not respond if I shift to a bigger gear. I plugged into my PC and from there ...
jhr's user avatar
  • 21
1 vote
1 answer
589 views

Di2 front ring drop down when going uphill

Di2 ultegra front ring drop down when going uphill. No pressure is applied on shifters. System works just fine on flat sections. What could be a problem?
Ania Wiatr's user avatar
2 votes
2 answers
7k views

Di2 not responding troubleshooting

My bike was on the trainer for a couple weeks. One morning, Di2 stopped responding. No shifting No light at junction box at all charger doesn't light up orange when plugged in etube doesn't detect ...
Val F.'s user avatar
  • 171
4 votes
2 answers
14k views

Di2 left shifter not working

I got myself a bike with Shimano di2, but I am new electric gearing. I have a problem, that Front derailleur (left shifter) is not working. Clicking any of the buttons on the left shifter, does ...
Shimano di2's user avatar
0 votes
2 answers
265 views

Trek Madone SLR Di2

Hi there I have just bought a Trek Madone SLR Di2 disc road bike. All the components are Dura Ace except for the rear derailler which is Ultegra. I was told that it could not be Dura Ace as when ...
Anthony Raymond Smith's user avatar
2 votes
1 answer
1k views

Can I upgrade to Synchro shifting on a 10s Di2 bike? (Ultegra 6770)

I bought a second hand bike with an existing Ultegra DI2 6770 groupset, which is a 10-speed group. I would like to upgrade the components required in order to have syncro shift on it. As far as I ...
db306's user avatar
  • 121
1 vote
2 answers
2k views

The best way to connect aerobars with Di2-shifters to bike w/ Ultegra 8000 Di2 and the junction box in the bar end?

The current installation (performed by the supplier) of the junction-box (EW-RS910) results in only one port left at the levers for what's usually used for sprint or climbing shifters. This port is ...
T0TTE's user avatar
  • 812
-1 votes
1 answer
169 views

Are 9150 shifters and wireless compatible with 9100 Rear Derailleur?

I’m getting Di2 for the first time and have 9150 crankset, shifters, and front derailleur. I was hoping to leverage the wireless features to - do I need to get the 9150 rear derailleur or can I settle ...
Omar's user avatar
  • 123
1 vote
1 answer
1k views

Ultegra 6870 Di2 Synchro Shift

I have an Ultegra 6870 Di2 groupset and I would like to use synchro shift. In e-tube project, I select Customize, then Shift Mode Setting. And I have an error message telling: If SM-BRM1/SM-BRM2/SM-...
iAmoric's user avatar
  • 113
1 vote
1 answer
550 views

Is it possible to add a TT shifter to Di2 junction box?

Is it technically possible to add another shifter to an already functioning Di2 setup, allowing for an extra shifter at the end of an aero extension bar, hooked up to the same junction box as the ...
Dániel Emőd Kovács's user avatar
5 votes
1 answer
2k views

Can I use Shimano's Di2 e-tube project software to do a custom lock out of additional small sprockets while in the small chainring?

Context: I'm designing a drivetrain for a touring triple-tandem that I'd like to have a very wide gear ratio. I plan to use the Shimano Di2 derailleurs (long cage RD-M9050-SGS and 3x11 FD-M9050) to ...
John McD's user avatar
  • 175
3 votes
1 answer
595 views

Will Shimano Di2 synchro shift work with an XT (Mountain) rear derailleur with an Ultegra (Road) front derailleur on the same bike?

Basically, can I mix a mountain Di2 rear derailleur (specifically, the RD-M8050-GS) and with a road Di2 front derailleur (specifically, the FD-R8050)? Will firmware updates and syncro shift still both ...
John McD's user avatar
  • 175
4 votes
1 answer
4k views

Garmin Edge 1030 and Di2 Connection

I just got a Garmin Edge 1030, and have newer Ultegra Di2 with the buttons on the hoods. I was excited to see that the Garmin can connect to Di2. When I look for it in the sensors, it is not coming up....
Matthew Allen's user avatar
2 votes
1 answer
2k views

Shimano Ultegra CS-6800 11/32 replacement?

I currently have Ultegra CS-6800, 11/32 w/Di2 on my bike. I've been wanting to get a second set of wheels and see that CS-6800 series is now replaced with the CS-R8000 series. If I move to the R8000 ...
Greg's user avatar
  • 21
8 votes
3 answers
3k views

Is anyone able to connect Shimano Di2 SM-BCR2 to Windows inside VirtualBox on Mac OSX?

I have a Shimano Di2 with the SM-BCR2 charger. Unfortunately, Shimano's e-tube software only works with Windows. I installed it in VirtualBox virtual machine and connected the SM-BCR2 to my Apple ...
4thSpace's user avatar
  • 201
0 votes
1 answer
118 views

Should i upgrade from Skultura 400D with 105 to giant tcr advanced with ultegra di2? [closed]

I have had the merida skultura 400d and have ridden around 1100kms. Would there be any value in getting giant tcr advanced pro disc or the propel advanced pro? My rides are generally 80kms a week ...
Sandeep Gawankar's user avatar
1 vote
1 answer
1k views

Can I add a 11-40 XT or XTR rear cog to a road bike with Di2?

I want to build up a road bike for the Baa Baa Bikepack and want some more large toothed gears. I want to run Di2 with a compact front derailleur and largest toothed cog possible. Ultegra CS-6800 is ...
David Chirnside's user avatar
1 vote
1 answer
804 views

What parts do I need to use Di2 wireless shifting on a road bike

Also what is the cheapest best way to buy them. I just want everything that is absolutely necessary for wireless shifting so no crank, drive chain breaks etc.
Benedikt Bünz's user avatar
4 votes
1 answer
5k views

Campagnolo EPS vs Shimano Di? [closed]

I am tempted in buying a Campagnolo Athena EPS groupset, but I am also eyeing the Shimano Ultegra Di2. What are the pros and cons of both of these? And don't get me started with SRAM as well.
Fandango68's user avatar
  • 1,292