Dura-Ace R9200

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stevec1975
Posts: 553
Joined: Tue Nov 24, 2009 12:37 pm
Location: London

by stevec1975

m3bas wrote:
Wed Dec 01, 2021 10:20 am
So getting my group fitted to my Emonda next week. Unfortunately getting another Shimano cassette for the 2nd set of wheels/ trainer is impossible. Are there any Shimano compatible cassettes out there in 12 speed that fit the hyperglide hub body?
r2 bike has the Ultegra 12 Speed Cassette in stock

https://r2-bike.com/SHIMANO-Ultegra-Cas ... d-CS-R8100

Maddie
Posts: 1531
Joined: Tue Oct 17, 2017 5:44 am

by Maddie

Sroad on Aliexpress already have a 12s 11-32 cassette that is HG compatible. Also a tiny bit lighter than DA but unsure about shifting quality.

by Weenie


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ericlambi
Posts: 149
Joined: Mon Apr 18, 2005 6:16 pm

by ericlambi

ccie6872 wrote:
Wed Dec 01, 2021 5:38 am
Quite the interesting setup - xplr 10-36 + 48/33 + 9200. It would be a great gravel setup...

https://www.instagram.com/p/CW7Hc6iF_p2 ... =copy_link
If that works then one would guess the rotor cassette probably does work also.

DaveS
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Joined: Fri Mar 24, 2006 1:26 pm
Location: Loveland Colorado

by DaveS

Shimano grx cranks work with the flat top chain. 48/31 or 46/30 chain rings are available to mate with a 10-36 cassette. I have no doubt that shimano 12 cranks will work too, but a 50/34 creates a big top gear with a 10T sprocket.

ccie6872
Posts: 363
Joined: Wed Jul 15, 2020 10:46 pm

by ccie6872

DaveS wrote:
Wed Dec 01, 2021 2:45 pm
Shimano grx cranks work with the flat top chain. 48/31 or 46/30 chain rings are available to mate with a 10-36 cassette. I have no doubt that shimano 12 cranks will work too, but a 50/34 creates a big top gear with a 10T sprocket.
Do you think a 9200 FD would work with 46/30 GRX (flat top chain)?

DaveS
Posts: 3921
Joined: Fri Mar 24, 2006 1:26 pm
Location: Loveland Colorado

by DaveS

The problem with using a 46/30 may be getting the FD low enough. 4T requires 8mm lower than a 50/34, IIRC.

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ms6073
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Joined: Fri Jul 23, 2004 8:24 pm
Location: Houston, Texas

by ms6073

stevec1975 wrote:
Wed Dec 01, 2021 9:42 am
Always preferred the DLC versions over the Shimano chains (and yes, I know they are both made by KMC)
Not a direct answer, but was running the KMC 11spd DLC chain on our road bikes with R9150/70 and AB oval rings as well as our gravel bikes with R8050/70 and Wickerks round chainring rings and swapped to the Shimano chain late spring. Thus far I have found the Shimano chain t be much quieter, better shifting, and best of all the finish of the chain remains constant, unlike the KMC chains in which the DLC coating which wore down on the links and rollers.
- Michael
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Gavin929
Posts: 72
Joined: Sun Nov 27, 2011 4:50 am

by Gavin929

Just installed the group on my bike. As far as I can tell you can no longer enable the ability to use the 11 and 12 tooth rear cogs while in the small ring. I know this is cross chaining and increases drag and wear on the parts. Does anyone know if there is a work around like there was on the 9100 di2 where you just change your chainring size and it allows you to enable it?

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pdlpsher1
Posts: 4016
Joined: Thu Jul 19, 2012 6:09 pm
Location: CO

by pdlpsher1

There used to be an option on the 9100 to change chainring and cassette sizes but last time I checked Shimano removed those options. I'd like to see a lock out on the big-big combo but I assume it's not there for 9200?

BdaGhisallo
Posts: 3261
Joined: Wed Mar 17, 2004 1:38 pm

by BdaGhisallo

Gavin929 wrote:
Thu Dec 02, 2021 8:32 pm
Just installed the group on my bike. As far as I can tell you can no longer enable the ability to use the 11 and 12 tooth rear cogs while in the small ring. I know this is cross chaining and increases drag and wear on the parts. Does anyone know if there is a work around like there was on the 9100 di2 where you just change your chainring size and it allows you to enable it?
For 11sp, in addition to specifying the right sized chainrings, you also had to deselect 'gear control'. Is there that option in the software for 9270?

Gavin929
Posts: 72
Joined: Sun Nov 27, 2011 4:50 am

by Gavin929

No option for gear control.

ooo
Posts: 1590
Joined: Sat May 21, 2016 12:59 pm

by ooo

r9200 is 22 speed group, if you want 24 speed you need to use campy
'

FlatlandClimber
Posts: 2491
Joined: Tue Mar 31, 2020 3:37 pm

by FlatlandClimber

ooo wrote:
Fri Dec 03, 2021 9:24 am
r9200 is 22 speed group, if you want 24 speed you need to use campy
What do you mean by that?
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ooo
Posts: 1590
Joined: Sat May 21, 2016 12:59 pm

by ooo

12+10=22 - number of gears you get on new electronic-only dura-ace r9200
11+11=22 - number of gears you get on old mechanical dura-ace r9100
12+12=24 - number of gears you get on mechanical campagnolo
'

by Weenie


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