[joachimvadseth]

I bought the RD-R8000GS (medium cage) a couple of months ago because I thought my RD cage was bent, and I also wanted to run bigger cassettes, and my RD hanger was not bent, so had to give it a try.

The rest is ST-6870 groupset with the SM-EW90 ans SM-BTR1 battery.

 

The RD dont want to move all the way out or in. It wont slightly overshift into the smallest cog even if the limit screw is all the way out. It wont shift properly up the cassette either. When it comes to the largest cog (32t) it wants to shift another gear up, wich means chain going over the top and into the wheel. When the H limit screw is set properly to not overshift on the 32t, the RD just tries and tries until it gives up shifting and shifts back half a cog. The microadjustments is set to 0 (16).

So I cant move the RD properly down the cassette it seems like. If i set the microadjusts to maximum the 11t is ok, but not the rest, since the H limit is not OK. Tried to hold the button on the SM-EW90 and let the gears cycle through, since its the only function part from the microadjusts I belive. 

Visited the local shop (not a proper shop, a “we have everything and its cheap”, so dont trust the mechanichs there that much, but I asked them to upgrade mye firmware, and it did not return any error codes either. The e-tube chart I think say my battery is not compatible but, the problems was there on the RD-6870 too. 

 

Any ideas?? Thanks

Topic

[joachimvadseth]

I just discovered that when
I just discovered that when shifting up and down (mostly when at the top or bottom, not so often in the middle of the cassette) that the ew90 junction box is lighting up green, then both red and green LEDs for some seconds. For instance when trying to shift into the 32t (the Di2 thinks there is one more cog, but it isnt, and limitscrews are set just so).

[Pilot Pete]

joachimvadseth wrote:

I did replace my hanger when I bought the new R8050. Also replaced it earlier when I ran the 6870. 

Guess I have to spend my christmas salery on a charger..

Just because a hanger is new doesn’t mean it doesn’t need aligning. I’d certainly check it with the right tool.

PP

 

[joachimvadseth]

I did replace my hanger when

I did replace my hanger when I bought the new R8050. Also replaced it earlier when I ran the 6870. 
 

Guess I have to spend my christmas salery on a charger..

[kil0ran]

Pilot Pete wrote:

It can be done wirelessly from a tablet with the Bluetooth sender somewhere in your wiring circuit – the EW-WU111. I would however just check the compatibility chart here https://e-tubeproject.shimano.com/pdf/en/HM-CC.3.2.0-01-EN.pdf to make sure everything is compatible before splashing out on one.

 

 

WU111 won’t work with OP’s battery and battery holder – his system only supports the EWW01, which doesn’t work with the tablet app.

[quasijones]

When I installed Di2 on my

When I installed Di2 on my bike I had the same issue.  A replacement hangar fixed it instantly.

[Pilot Pete]

You say that t he hanger is

You say that t he hanger is not bent. Have you used a hanger alignment tool to confirm this? That’s where I would start. Even a slight bend can throw your micro adjustments way out.

You should also check that you are somewhere in the middle of the available micro adjustments and then fine tune from there – if you are at one extreme you may find you are actually on the wrong cog at the back (one cog out of where the derailleur should be).

As for not getting the cross-chaining combinations, that is indeed a feature which can be changed using the E-TUBE software. As others have said you will need the charger, cable and a windows based pc/ laptop to access it. I would get this kit and ensure all the firmware for each component is up to date and then get into the settings to change your configuration.

It can be done wirelessly from a tablet with the Bluetooth sender somewhere in your wiring circuit – the EW-WU111. I would however just check the compatibility chart here https://e-tubeproject.shimano.com/pdf/en/HM-CC.3.2.0-01-EN.pdf to make sure everything is compatible before splashing out on one.

I use the Bluetooth sender but merely for linking to my Garmin. I do not use it for firmware updates via my iPad run E-TUBE app as I have heard of people struggling to get that to work properly – the charger linked to my windows pc works fine every time for those.

PP

 

[joachimvadseth]

That was whst I did yesterday

That was whst I did yesterday. Started sll over with basic setup. 
 

I thought that it might was bent because Ive had some wierd clicking noises for some years, like the chain was not aligning properly on the lowest pully. Ive never had a crash. Bike have fallen over some times ofc but it has usealy been the shifters snd handlebars/crsnk arms who have taken the fall. 
 

I do have a slightly well used crankset tho. Chain snd cassette is almost new. Tried switching the chain around but no change. Tried an older cassette too. 

[CXR94Di2]

Go back to the basic setup.
Go back to the basic setup. Place setup up mid cassette, ensure the derailleur is on the correct gear. With micro adjustment align chain by closely observing chain position. The setup shouldn’t be more than a few clicks either side of zero.

You mention 16 in micro adjustment which indicates, the cassette is either in the wrong position or the hanger is at problem. Why did you think your original derailleur was bent, have you had a crash?

[kil0ran]

Something like this is

Something like this is probably your best option – if you’ve got a Windows laptop

https://www.ebay.co.uk/itm/Shimano-SM-PCE1-PC-Interface-Device-for-hire-4-DAY-hire/223773653607?epid=1037624324&hash=item3419f2fa67:g:uxkAAOSwbsBXj3IJ

 

[kil0ran]

Is your battery definitely a

Is your battery definitely a BTR-1? Because if so you need the much more expensive SM-PCE1 charger to use eTube for firmware updates/resets, the BCR2 won’t work:

See:

Note 6 – SM-BTR1 External Battery and SM-BMR1 Mount firmware updates: The more expensive dedicate service tool (SM-PCE1 PC Interface) must be used to upgrade the firmware on the external battery/mount.The external battery and battery mount can not receive firmware upgrades via the SM-EW90 Front Junction A and the SM-BCR2 PC Interface/Battery Charger. (The SM-EW90 will work in a system with an external battery, but a firmware update can cause them to become incompatible until both are updated independently using the appropriate PC Interface and the Shimano E-Tube Project software.)

from http://carltonbale.com/shimano-di2-everything-you-need-to-know/comment-page-8/ (search BTR1)

[joachimvadseth]

Judge dreadful wrote:

It’s avoiding cross chaining, as it’s programmed to do. Update the firmware, and see what happens.

 

Fw was updates previously. Font think its avoiding cross chaining since the RD isnt moving enough down snd moves too much up. 

[Judge dreadful]

It’s avoiding cross chaining,

It’s avoiding cross chaining, as it’s programmed to do. Update the firmware, and see what happens.

[hawkinspeter]

joachimvadseth wrote:

Is this something than can plug into the EW90? 
https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.com%2Fulk%2Fitm%2F273502606971

No – that looks like a standard usb-micro cable.

I think you need the SM-BCR2 battery charger (see pic below) which you can usually pick up for around £50 on EBay. The SM-BCR2 converts a usb-micro cable into the proprietary Di2 port connector (I think it also changes the voltage) and also doubles as a PC-USB-Di2 adapter.

 

[joachimvadseth]

Is this something than can

Is this something than can plug into the EW90? 
https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.com%2Fulk%2Fitm%2F273502606971

[joachimvadseth]

I only have the dedicated

I only have the dedicated charger for the battery, not the USB-one. 

[Author]

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