New dura-ace R9100

Discuss light weight issues concerning road bikes & parts.
TurboKoo
Posts: 424
Joined: Wed Oct 29, 2008 7:55 pm

by TurboKoo

wingguy wrote:But it's what, a quarter of a mm IIRC?

0,4mm
Scott Foil
Shimano 9150
Shimano FCR-9100-P
Shimano C60 tubulars

TheDarkInstall
Posts: 723
Joined: Sun Jan 26, 2014 3:44 am

by TheDarkInstall

WonderSausage wrote:I have to run 9000 chainrings anyhow because even though the bolt pattern is the same, the 9100 chainrings are not compatible with 9000 style spiders, e.g. the Quarq DFour power meter that I'll be using.


Ah so they did lock down the ring interface. Bastards.

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WonderSausage
Posts: 54
Joined: Fri Mar 29, 2013 10:51 pm

by WonderSausage

TheDarkInstall wrote:
WonderSausage wrote:I have to run 9000 chainrings anyhow because even though the bolt pattern is the same, the 9100 chainrings are not compatible with 9000 style spiders, e.g. the Quarq DFour power meter that I'll be using.


Ah so they did lock down the ring interface. Bastards.


Well if they had managed to ship their power meter, this would have bought them some time where they'd be the only cosmetic-matching power meter on the market. But if the rumors are true about the 9100 power meter crank delivery dates being months out, they'll have squandered most of their advantage. Stages is already taking preorders, and I'm sure Quarq is already working on a black DFour with 9100 chainring compatibility.

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toiyuet
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Joined: Wed Dec 14, 2011 2:47 pm
Location: Hong Kong

by toiyuet

Copied from fb.
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ooo
Posts: 510
Joined: Sat May 21, 2016 12:59 pm

by ooo

new vs old di2 dura-ace STI levers side by side

https://www.youtube.com/watch?v=rkYWprknvNA
'

NJ78
Posts: 27
Joined: Sat Dec 13, 2014 1:59 pm

by NJ78

Thanks for the info on the DA9000 / 9100 power meter compatibility.

Given the expected shipping delays and the uncertainty on whether it's a straight swap of the cranksets I might look at other options.

TheDarkInstall
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Joined: Sun Jan 26, 2014 3:44 am

by TheDarkInstall

toiyuet wrote:Copied from fb.
Image


Cool, but does it actually work without being a creaking mess, and do these old drilling positions put the teeth in the exact same position they put the old 9000 rings (ie, are the drillings on the 9100 chainring at the same rotational orientation to the teeth as the 9000 ones are?)

idinfo68
Posts: 82
Joined: Wed Nov 05, 2014 9:35 pm
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by idinfo68

Mine is ok ! Semi-SynchroShift and SynchroShift is amazing !

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Other pictures on this page :
https://baron-noir.jimdo.com/colnago-concept-2017

Brus
Posts: 38
Joined: Mon Apr 25, 2016 1:36 pm

by Brus

wingguy wrote:
strangely wrote:@NJ78, I'm hearing the release date is delayed to around July now.

I've seen one person with 9100 mechanical gears running the 9000 chainset and another with 9150 on a 9000 chainset (will be running this myself in a week or two), so I'd imagine the opposite is fine also without needing any other upgrades.

Shimano compatibility chart says no. The official word is that a 9100 / 9150 front mech works with either a 9000 or 9100 chain set, but that a 9000 / 9070 front mech will not work properly with a 9100 chain set.

Though tbh the difference is so tiny that I'd be amazed if they wouldn't function acceptably well enough :noidea:


9150 is still not available here. So for now i have 9100 crankset with 6870 FD,RD and shifters, DA9000 11-25 cassette, and yesterday, first 3hours outside and no issues, works fine .

sp3000
Posts: 174
Joined: Thu Aug 21, 2014 7:12 am
Location: Sydney

by sp3000

I just received a new cs-9000 11-28t, has anybody else noticed the new tooth profile? Especially on the 11t?
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Nefarious86
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by Nefarious86

TheDarkInstall wrote:
toiyuet wrote:Copied from fb.
Image


Cool, but does it actually work without being a creaking mess, and do these old drilling positions put the teeth in the exact same position they put the old 9000 rings (ie, are the drillings on the 9100 chainring at the same rotational orientation to the teeth as the 9000 ones are?)

If you're using the 9100 inner and outer does it matter if the rings are slightly of phase to the arms as long as they are in phase with eachother? And are the bolt holes significantly different or is it just the interface surfaces?
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TheDarkInstall
Posts: 723
Joined: Sun Jan 26, 2014 3:44 am

by TheDarkInstall

Nefarious86 wrote:
TheDarkInstall wrote:
toiyuet wrote:Copied from fb.
Image


Cool, but does it actually work without being a creaking mess, and do these old drilling positions put the teeth in the exact same position they put the old 9000 rings (ie, are the drillings on the 9100 chainring at the same rotational orientation to the teeth as the 9000 ones are?)

If you're using the 9100 inner and outer does it matter if the rings are slightly of phase to the arms as long as they are in phase with eachother? And are the bolt holes significantly different or is it just the interface surfaces?


Yeah I would like firm answers on these questions as well. I would imagine the answer to your first question is that it does matter.

Nefarious86
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by Nefarious86

How does it matter? There are how many different chainrings on the market? Do you think every single one of them lines up the same on a given set of crank arms? As long as the inner and outer rings are phased correctly why would it matter where the crank arms are?
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NJ78
Posts: 27
Joined: Sat Dec 13, 2014 1:59 pm

by NJ78

I got my LBS to check current release date for DA9100 power meter y'day and it's scheduled early April for UK. Online UK retailers are also showing early April and taking pre-orders.

Responses in this thread have suggested there's delays and it'll be July at earliest, where is this info coming from ?

wingguy
Posts: 3750
Joined: Thu Mar 08, 2012 11:43 pm

by wingguy

NJ78 wrote:Responses in this thread have suggested there's delays and it'll be July at earliest, where is this info coming from ?

I'm not sure - but I looked up the 9170 lever/brake combos the other day and the UK distributor was still showing april availability too, where people on here were talking about delays.

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