Dura-Ace R9200

[jdecraene85]

Another boring 9270 build

With those wheels, tires, chainset, bottlecage, seatpost and saddle... Interested about the weight!!

[jdecraene85]

Another boring 9270 build

With those wheels, tires, chainset, bottlecage, seatpost and saddle... Interested about the weight!!

Never mind, solved my own question in the SL7 thread: 6,39 kg. Impressive.

[kamokamo12]

I made two types of electric downtube shifters, friction and Di2.
https://youtu.be/QOA7ENnLUuw
https://youtu.be/FYhrPh0-uGg

Thanks for watching.

[tortor]

My Aethos sw rebuild with 9200 groupset
52-36
172,5mm
11-30 cassette
140mm rear xtr disc
6100 gr complete bike

[MasterBean]

I like that you're in the 16 tooth which is the extra one they've added

Sent from my COL-L29 using Tapatalk

[lanternrouge]

Walked into LBS and went home with the new group - 52/36 170mm and 11-30t. I'm going to order frame and wheelset tomorrow. I'm in California.

IMG_3130 by ipenguinking, on Flickr

Jealousy. I don’t get mine until my new bike arrives next year.


Sent from my iPhone using Tapatalk

[treyxt]

Looks like jensonusa has the groupset in stock...

https://www.jensonusa.com/Shimano-Dura- ... -MEALw_wcB

[newnuj]

*repeated post*

[newnuj]

My Aethos sw rebuild with 9200 groupset
52-36
172,5mm
11-30 cassette
140mm rear xtr disc
6100 gr complete bike

Where did you get the cranks from? I don't think they are for sale.

[rustedsword]

Shimano says the BT-DN300 is the Master unit of the system..............and has already released the first firmware update for the ST-R9270 https://bike.shimano.com/en-EU/e-tube/p ... l=ST-R9270

There is also version 5.0.2 of E-tube for Windows

Well, ST-R9270 is just not instresting, it is just a switch.

As for BT-DN300. yes, it is marked as 'Master unit' on shimano website, but how it really work?

For example, most common operation: gear shift with DN110:

Code: Select all

Switch -> input press PLC message -> BT-DN110 -> gear set PLC message -> Derailleur

But if BT-DN300 works same way, then a pipeline for gear shift will be:

Code: Select all

ST-R9270 -> press message(wireless) -> RD-R9250 -> PLC input message -> BT-DN300 -> gear_set PLC message -> RD-R9250

So we have a longer message transmission path with wireless stuff when BT-DN300 act as server, which is very unoptimal.
Well, sooner or later they will publish firmware and we'll see how it is really done

[rustedsword]

You impress me but also leave me asking is this what cycling has become? I admit that nothing old school can compare to my DA 9170 equipped rig, but there is a part of me that misses the simplicity and the overall zen of mechanical bikes (but hey, my first race was in 1979 so...). I hope the 9200 stuff really delivers, though other than better ergonomics of the hoods, I have trouble seeing an argument to upgrade over 91XX. Not even sure I'm keen on the semi-wireless.

Well... this is the future! Today, a bicycle with electronic shifting is the same thing as launching a rocket to the moon

However, what I really don't like here is artifical firmware limitations. Shimano sells their derailleurs for a decade with firmware that makes them fixed speed, while they are multi-speed derailleurs in reality.

As for wireless stuff.. I think it would be better if they put some sensors for chain rotation tracking, so RD would know when it needs to move it's cage instead of trying to move it in blind.

[tortor]

Where did you get the cranks from? I don't think they are for sale.

European retail priority pack

[stevec1975]

My Aethos sw rebuild with 9200 groupset
52-36
172,5mm
11-30 cassette
140mm rear xtr disc
6100 gr complete bike

Where did you get the cranks from? I don't think they are for sale.

I have a set of the new Cranks for Sale 52/36 172.5mm Length, check out the below

viewtopic.php?f=5&t=168185

[ryanw]

Updated shifters today, only took 10s each but still annoying it has to be done (at present) via a wired system.

[stevec1975]

Do you have to do that out of the box, i.e. the 9200 arrives with old firmware?