Dura-Ace R9200

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

by FlatlandClimber

Besides the reported 55/40, will there be any other "new" chainring option, or will 50/34, 52/36, 53/39 all stay in place?
Cervelo P5 Disc (2021) 9.1kg
Factor Ostro Gravel (2023) 8.0kg
S-Works SL8 (2023) 6.3kg

*weights are race ready, size 58/L.
Sold: Venge, S5 Disc, Roubaix Team, Open WI.DE, Émonda, Shiv TT, Crux, Aethos, SL7

by Weenie


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RDY
Posts: 2401
Joined: Thu Jul 30, 2020 10:31 pm

by RDY

FlatlandClimber wrote:
Tue Aug 03, 2021 1:04 pm
Besides the reported 55/40, will there be any other "new" chainring option, or will 50/34, 52/36, 53/39 all stay in place?
If there's 55/40, I could see them getting rid of 53/39. Most current 53/39 buyers will probably go for the biggest option available.

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

by FlatlandClimber

A bigger jump between big and small ring is always welcome for me, at least as an option. Something like a 52/35 or 51/34 would be welcome. However, I doubt they will go super unconventional.
Cervelo P5 Disc (2021) 9.1kg
Factor Ostro Gravel (2023) 8.0kg
S-Works SL8 (2023) 6.3kg

*weights are race ready, size 58/L.
Sold: Venge, S5 Disc, Roubaix Team, Open WI.DE, Émonda, Shiv TT, Crux, Aethos, SL7

ooo
Posts: 1591
Joined: Sat May 21, 2016 12:59 pm

by ooo

all chainrings will have even number of tooth

@roselend listed chainrings sizes in this topic: 54-40 52-36 50-34
'

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pdlpsher1
Posts: 4022
Joined: Thu Jul 19, 2012 6:09 pm
Location: CO

by pdlpsher1

Someone posted the chainring size options many pages back. I believe it was 50/34, 52/36, and 54/40.

I'm current running a GRX 48/31 crank and a 11-32 cassette and love it. However my 9150 FD wouldn't shift the 48/31 properly so I had to change it to a GRX FD. A 48-11 is a taller gear than a 50-12 and it's fine for me. A smaller large ring puts the chain on the taller end of the cassette where the tooth count gaps are smaller. If a pro is fine with a 54-11 I'll be fine with a 48-11. I'm down 200w or more from a pro.

henau212
Posts: 149
Joined: Sun Dec 09, 2018 12:27 pm

by henau212

Addict15 wrote:
Tue Aug 03, 2021 1:59 am
Embargo for new Dura ace will apparently be lifted 31st of august -> https://www.cube.eu/nl/2022/bikes/road/ ... lverngrey/

Also new sram xplr gravel stuff embargo is lifted 10th of august -> https://www.cube.eu/nl/2022/bikes/road/ ... acknblack/
Also, new Agree (links seem to be working from time to time..):
DA
https://www.cube.eu/2022/bikes/road/roa ... edncarbon/

UT (3.399€ for Di2 is a good indication that the price increase will not be too bad)
https://www.cube.eu/2022/bikes/road/roa ... bonnblack/

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MarshMellow
Posts: 158
Joined: Thu Dec 03, 2020 10:47 pm

by MarshMellow

ooo wrote:
Tue Aug 03, 2021 2:06 pm
all chainrings will have even number of tooth

@roselend listed chainrings sizes in this topic: 54-40 52-36 50-34
56-42t pleeze.
RimClencher wrote:
Tue Apr 15, 2014 10:56 am
That's your own fault for riding with no clothes on.

OnTheRivet
Posts: 734
Joined: Sat Jul 24, 2010 9:41 pm

by OnTheRivet

henau212 wrote:
Tue Aug 03, 2021 2:52 pm
Addict15 wrote:
Tue Aug 03, 2021 1:59 am
Embargo for new Dura ace will apparently be lifted 31st of august -> https://www.cube.eu/nl/2022/bikes/road/ ... lverngrey/

Also new sram xplr gravel stuff embargo is lifted 10th of august -> https://www.cube.eu/nl/2022/bikes/road/ ... acknblack/
Also, new Agree (links seem to be working from time to time..):
DA
https://www.cube.eu/2022/bikes/road/roa ... edncarbon/

UT (3.399€ for Di2 is a good indication that the price increase will not be too bad)
https://www.cube.eu/2022/bikes/road/roa ... bonnblack/
Surprised they haven't done anything visually (color) to distinguish it from the last iteration. Coffee shop crew are not going to be happy rolling up and nobody can tell you have the new stuff, what's the point. :D

Addict15
Posts: 100
Joined: Sun Feb 07, 2021 1:29 am

by Addict15

On the Cube Agree with new Ultegra you can't see any di2 wires. Could be a coincidence that they're behind the hoses, but it's more likely that it will indeed be fully wireless on the front of the bike

Minirac
Posts: 94
Joined: Thu Aug 06, 2020 10:13 pm

by Minirac

FlatlandClimber wrote:
Tue Aug 03, 2021 1:35 pm
A bigger jump between big and small ring is always welcome for me, at least as an option. Something like a 52/35 or 51/34 would be welcome. However, I doubt they will go super unconventional.
You will never see this. You need small as possible jump, hance everyone use 53/39 more than 52/36. With 52/36 when you switch front chainring you need AT THE SAME TIME double gear switch on the back to get to the same ratio. With 53/39 you only need one, so it is a lot smoother and faster and better momemntum. Sram get even lower 13T jump.

blaugrana
Posts: 457
Joined: Wed May 24, 2017 9:49 pm

by blaugrana

Minirac wrote:
Tue Aug 03, 2021 8:45 pm
FlatlandClimber wrote:
Tue Aug 03, 2021 1:35 pm
A bigger jump between big and small ring is always welcome for me, at least as an option. Something like a 52/35 or 51/34 would be welcome. However, I doubt they will go super unconventional.
You will never see this. You need small as possible jump, hance everyone use 53/39 more than 52/36. With 52/36 when you switch front chainring you need AT THE SAME TIME double gear switch on the back to get to the same ratio. With 53/39 you only need one, so it is a lot smoother and faster and better momemntum. Sram get even lower 13T jump.
Pro team bikes might be another story, but are you sure that more consumers use 53/39 than 52/36? In fairly mountainous areas very few people are still using 53/39 in my experience, because with 52/36 you can get both a top gear that's almost as fast as with the 53, and reasonably easy climbing gears at the same time.

Also, looking at bike catalogues, you usually see 50/34 on lower end and endurance bikes, and 52/36 on the racier builds. But very few bikes come pre-built with a 53/39 these days.

JMeinholdt
Posts: 776
Joined: Wed Feb 26, 2020 10:31 pm
Location: Topeka, KS

by JMeinholdt

Minirac wrote:
Tue Aug 03, 2021 8:45 pm
FlatlandClimber wrote:
Tue Aug 03, 2021 1:35 pm
A bigger jump between big and small ring is always welcome for me, at least as an option. Something like a 52/35 or 51/34 would be welcome. However, I doubt they will go super unconventional.
You will never see this. You need small as possible jump, hance everyone use 53/39 more than 52/36. With 52/36 when you switch front chainring you need AT THE SAME TIME double gear switch on the back to get to the same ratio. With 53/39 you only need one, so it is a lot smoother and faster and better momemntum. Sram get even lower 13T jump.
While I don't want to speculate on amount of people using whatever, I will say that after using SRAM with a 13T jump, I much prefer it over my old 52/36 set up. The double (or more) compensation shift I always felt put my chainline in a less than ideal position. The 13T jump allows me to stay on the same side of the cassette block that I need to be for good chainline.
Wilier Cento10AIR - SRAM Force AXS - Road/race
3T Exploro - SRAM Rival AXS XPLR - Gravel
Wilier Sestiere - Shimano Tiagra - Commuter

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Toby
Posts: 105
Joined: Thu Sep 06, 2012 4:30 am

by Toby

Does anyone know if the cassettes will be compatible with other 12s cassettes, like Rotor, SRAM, or Campy? That would be nice.

Also, the 105 Di2 is hilarious if true, given how many people on this forum mocked me a few years ago for saying I'd like that and said it made no sense and would never be made.

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pdlpsher1
Posts: 4022
Joined: Thu Jul 19, 2012 6:09 pm
Location: CO

by pdlpsher1

Minirac wrote:
Tue Aug 03, 2021 8:45 pm
FlatlandClimber wrote:
Tue Aug 03, 2021 1:35 pm
A bigger jump between big and small ring is always welcome for me, at least as an option. Something like a 52/35 or 51/34 would be welcome. However, I doubt they will go super unconventional.
You will never see this. You need small as possible jump, hance everyone use 53/39 more than 52/36. With 52/36 when you switch front chainring you need AT THE SAME TIME double gear switch on the back to get to the same ratio. With 53/39 you only need one, so it is a lot smoother and faster and better momemntum. Sram get even lower 13T jump.
With a narrow range cassette (11-25, 11-28) you'd be shifting the FD more often to keep a good chainline. However the new trend is wide range cassettes. With a wide range cassette you can stay on the big ring longer, and only shift to the small ring for extended climbs. You see it in the pro peloton. Riders prefer riding on the big ring despite some cross-chaining. A 17T tooth gap is a good way to extend the range. I'd love to see a 50/33.

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

by FlatlandClimber

For pros, small jumps are perfect, I get it. But 39 just is too big for riding steep long climbs, like in the alps.
It's not that you can't make it work, but it is not fun.
I am currently in the Alps, and have ridden several of the famous Cols of le Tour, with gearing going as low as 1:1. it is a dream on long rides, and with >5Wkg FTP, I am not the weakest or heaviest cyclist. I am not using the 1:1 gear super often, but it's nice that it's there.
39/32 will be a big gear to push for non pros on Col de la Loze, on the steep part begins AFTER 1300 meters of elevation gain.
Cervelo P5 Disc (2021) 9.1kg
Factor Ostro Gravel (2023) 8.0kg
S-Works SL8 (2023) 6.3kg

*weights are race ready, size 58/L.
Sold: Venge, S5 Disc, Roubaix Team, Open WI.DE, Émonda, Shiv TT, Crux, Aethos, SL7

by Weenie


Visit starbike.com Online Retailer for HighEnd cycling components
Great Prices ✓    Broad Selection ✓    Worldwide Delivery ✓

www.starbike.com



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