Electronic & Hydraulic Shifting (Di2, Ui2, customisations)

Aren't small loops next to the hoods required in the instructions?
Just make the loop bigger.

Yeah, they literally print a big warning to put in loops right on the box.

e.g. first pic here (zoom in).

https://www.pinkbike.com/news/shimano-gearbox-in-the-works-files-patents-on-hybrid-roller-chain-sequential-shifting-transmission.html?fbclid=IwAR3TX-_k_UnbMJXQGDFGxLdwQ2GEzZ6ekdnwai2mLuCf2gssoDv4xHYcqHA

I wouldn't take Shimano patent filings as any kind of guide to what they will actually produce, they are well known for patenting everything they think of as a protective policy just in case somebody else finds a way to bring the idea to the market in a profitable way which has escaped the Shimano production engineers.

"developing a comprehensive strategy to produce"

"The smoking gun in Shimano's application can be found in the details. The abstract drawings depict a concept that is near production"

"Shimano's application also describes in detail, a special lubricating fluid... Does that sound speculative? I didn't get that impression either."

"this gearbox will eventually be scalable and thus appear at a number of price points. Conventional gearboxes are not - which is why the gearbox bike has never been moved into mass production."

You can speculate to your hearts content on cycling websites. Nothing on either Pinkbike or Bikeradar shows anything in terms of design detail which you couldn't find in thousands of other patents which never even got as far as physical prototypes.

I'm still waiting for the jockey wheel dynamos that will recharge my Di2 system which Bikeradar breathlessly speculated were going to hit the shops imminently a few years ago based on a Shimano patent.

I'm not sure they did.

"Shimano electronic gears could soon charge themselves"

"How likely is this to make production?
I’m in two minds here. On the one hand, Di2 batteries work for so many shifts already that the need for this system isn’t totally clear."

https://www.bikeradar.com/features/shimano-electronic-gears-could-soon-charge-themselves/

Solution in need of a problem. Might be better for eTap.

That's what everyone said about Di2.

spits at cable shifters

Anyone interested in a 6870 SS rear mech for £55? No longer needed, perfectly working, a couple of usual scuffs from resting against walls

My front mech is not trimming as the rear mech goes up and down the block on my eTap bike- how do I regain trimming?

There’s no auto trim like Di2? Do you mean setting the yaw? I think that’s the word 😏

I thought there was automatic trimming, but tbf I've not ridden this bike in some time.

Hmm, more googling after watching the install video on YouTube suggests not.

it doesn't trim because it does the "yaw" thing where it rotates slightly as you shift up

My front mech is not trimming as the rear mech goes up and down the block on my eTap bike- how do I regain trimming?

Replace with Shimano.

It’s the travel bike which splits in two, so eTap is very handy.

I suppose the next generation has the sequential shift so gets around this.

I am moving to newer Di2 - I had the original DA kit circa 2013/14 and more recently Alfine Di2 8 speed - both bike were all built up so I didn't even think about cable routing.

I have purchased a Lynskey Helix Pro (Ti) which is Di2 Compatible and new Di2 groupset which is a mix of R8070/R9150.

Now that I have all the bits in hand, I realise that there are bloody cables to go everywhere.
Maybe I should I thought about this before but hey - I am replacing gear cables by e-tubes so they need to be routed somewhere.

e-tubes need to run from the shifters to the junction box - which I would like to fit in the stem so it's hidden. Then how do run the cables from the inside of the stem through the fork steerer then in the frame.

What are the e-tube routing options if I was to choose the fork bung battery holder?
This one
Stem - battery bung - frame?

How do you make it neat?

What is happening with routing? It is

You achieve nothing by putting battery there, so why?

if you run a 1x11 group or mtb, you have only one cable going to the rear derailleur.

How do you run your Di2 cables from your bars, through your stem, inside your steerer, through your frame, without coming out?

You can make things neat by buying a Y cable, a bar end junction.

i stand corrected, but without building a modern aero frame with overzized spacers and whatnot that do the job of hiding the exiting etubes and hydro brake cables, you will have an e-tube going from stem to entry-point in frame.

Then you need a hole in the steerer

At least one. Probably two. You may well also need to drill multiple holes in your handlebars and stem. And after all that, and after paying for your dental insurance policy, you'll still have the brake cables/hoses flailing around.

This is how I did my Lynskey - junction box under the stem, cable to the junction B box in the downtube attached to the rear brake line with heat shrink. It goes into the frame at the headtube and stays there. Of course it looks much less sleek from the NDS as the rear brake hose runs all the way down the outside of the downtube.

1 Attachment