Dura-Ace R9200

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ultimobici
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by ultimobici

Re Sram “reliability”

https://youtu.be/Tsk3zAZyLaQ

Whereas pretty much every Shimano issue has been rejected to someone not switching the charger on at night.


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Ritxis
Posts: 1119
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Location: San Sebastian

by Ritxis

TobinHatesYou wrote:
Tue Jul 27, 2021 4:56 am
biwa wrote:
Tue Jul 27, 2021 3:44 am

Because most pros will still want wired for performance/reliability

Has there even been a report of radio interference causing reliability issues in a race? Sounds like FUD to me.
In Vuelta 2019, Shimano was already doing interference tests ... it is assumed that before and after too ................ and they will have everything very well defined

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TobinHatesYou
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by TobinHatesYou

Ritxis wrote:
Tue Jul 27, 2021 8:19 am

In Vuelta 2019, Shimano was already doing interference tests ... it is assumed that before and after too ................ and they will have everything very well defined

The option of wired with wireless failover if the connectors come loose would be interesting for the truly paranoid.

pmprego
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by pmprego

TobinHatesYou wrote:
Tue Jul 27, 2021 8:36 am
Ritxis wrote:
Tue Jul 27, 2021 8:19 am

In Vuelta 2019, Shimano was already doing interference tests ... it is assumed that before and after too ................ and they will have everything very well defined

The option of wired with wireless failover if the connectors come loose would be interesting for the truly paranoid.
So basically would act as an insurance and with every insurance it carries a price/cost over it. Thus, as long as shimano prices a premium for that insurance im totally fine with it.

Regarding the famous video of mollema... Really?? For every video like that someone can also easily find some other riding literally kicking their dura ace equipment. Are we 5 year old? "but my father is a policeman and will bring his policeman friends"

A pro rider will not care if its wired or wireless. Again, they are paid to ride. That's their comparative advantage and they better use it and specialize in it.

Alfus
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by Alfus

Discodan wrote:
Tue Jul 27, 2021 6:31 am
Maybe that should have been: Because most pros will still want wired for "perceived" performance/reliability

Agree that etap doesn't have a wireless reliability issue but pros can be a very conservative bunch, particularly when they don't have to route the cable :)
95% of pro peloton cannot distinguish between Shimano or Sram, imagine talk about wireless protocols, etc....

pmprego
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by pmprego

Alfus wrote:
Tue Jul 27, 2021 10:16 am
Discodan wrote:
Tue Jul 27, 2021 6:31 am
Maybe that should have been: Because most pros will still want wired for "perceived" performance/reliability

Agree that etap doesn't have a wireless reliability issue but pros can be a very conservative bunch, particularly when they don't have to route the cable :)
95% of pro peloton cannot distinguish between Shimano or Sram, imagine talk about wireless protocols, etc....
But they dont have to. Their are not pro mechanics. Their are pro cyclist thus they cycle.

Cubist
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by Cubist

Deleted
Last edited by Cubist on Tue Jul 27, 2021 9:26 pm, edited 1 time in total.

Broady
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by Broady

Looks tidy.

ooo
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by ooo

pdlpsher1 wrote:
Tue Jul 27, 2021 2:00 am
harblhat wrote:
Tue Jul 27, 2021 1:10 am
ooo wrote:
Mon Jul 26, 2021 8:06 pm
hydro shifter have 1x SD300 port + 1x satellite port
rim brake shifter have 2x SD300 port + 1x satellite port
A few pages back, there was a rumour that the rim group would be fully wired instead of wireless from shifters to derailleurs. The rim shifters having an extra port could back that rumour up, as they would need to be connected to a Junction A if wired.
There would be no need for junction A as junction A has become part of the RD. The extra port would just be used to connect to the battery. If the new rim brake levers are truly wired then there's little incentive for people to upgrade their existing rim brake levers. As for the existing hydro levers they won't be compatible with the new derailleurs which will add perhaps $600 to upgrade to 12-speed.

OOO- could you confirm if the rim brake levers are indeed wired?
(semi)wireless connection is recommended for hydro brakes 12s shifters
(fully)wired connection is recommended for rim brakes 12s shifters (no A-junction)

I don't know if you can use them other way around

old tt hydro shifters ST-R9180 are compatible with 12s di2 (see here; no a-junction)
other old di2 shifters uses same chips, hopefully they will be not software blocked
Last edited by ooo on Tue Jul 27, 2021 2:14 pm, edited 5 times in total.
'

Cemicar
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by Cemicar

What's the point of the black-coated cage? It somewhat looks nice, but maybe just cosmetic like Campagnolo did a similar thing on Record level front derailleurs.

harblhat
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Joined: Mon Jul 18, 2011 12:18 am

by harblhat

ooo wrote:
Tue Jul 27, 2021 2:05 pm
(semi)wireless connection is recommended for hydro brakes 12s shifters
(fully)wired connection is recommended for rim brakes 12s shifters (no A-junction)

I don't know if you can use them other way around

old tt hydro shifters ST-R9180 are compatible with 12s di2 (see here; no a-junction)
other old di2 shifters uses same chips, hopefully they will be not software blocked
Thanks ooo. If the rim shifters need to be fully wired, that would be a big miss on Shimano's part. Did they just not want to put in the work to design a wireless rim brake shifter and try to maintain the old design?

I'm not sure what "recommended" means here - would there be an option for wireless, perhaps connected to a separate transmitter if the shifters themselves don't have?

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

by henau212

harblhat wrote:
Tue Jul 27, 2021 2:32 pm
ooo wrote:
Tue Jul 27, 2021 2:05 pm
(semi)wireless connection is recommended for hydro brakes 12s shifters
(fully)wired connection is recommended for rim brakes 12s shifters (no A-junction)

I don't know if you can use them other way around

old tt hydro shifters ST-R9180 are compatible with 12s di2 (see here; no a-junction)
other old di2 shifters uses same chips, hopefully they will be not software blocked
Thanks ooo. If the rim shifters need to be fully wired, that would be a big miss on Shimano's part. Did they just not want to put in the work to design a wireless rim brake shifter and try to maintain the old design?

I'm not sure what "recommended" means here - would there be an option for wireless, perhaps connected to a separate transmitter if the shifters themselves don't have?
Maybe they didn't see any further invest in the rim brake market and recycled the old rim brakes and STIs for 12s DA?

Ritxis
Posts: 1119
Joined: Fri Jun 01, 2012 3:00 pm
Location: San Sebastian

by Ritxis

harblhat wrote:
Tue Jul 27, 2021 2:32 pm
ooo wrote:
Tue Jul 27, 2021 2:05 pm
(semi)wireless connection is recommended for hydro brakes 12s shifters
(fully)wired connection is recommended for rim brakes 12s shifters (no A-junction)

I don't know if you can use them other way around

old tt hydro shifters ST-R9180 are compatible with 12s di2 (see here; no a-junction)
other old di2 shifters uses same chips, hopefully they will be not software blocked
Thanks ooo. If the rim shifters need to be fully wired, that would be a big miss on Shimano's part. Did they just not want to put in the work to design a wireless rim brake shifter and try to maintain the old design?

I'm not sure what "recommended" means here - would there be an option for wireless, perhaps connected to a separate transmitter if the shifters themselves don't have?

I was going to comment on that...............

What is the use of a rim brake lever with wireless and recommend a cable connection? when the patents show rim brake levers with the wireless transmitter :noidea:


st4.png

stan1000
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Joined: Wed Jul 21, 2021 10:27 am

by stan1000

Perhaps Cable connection required for linking into climb or sprint shift modules? As they wouldn't have their own battery?

Cubist
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Joined: Tue Jul 16, 2019 11:04 pm

by Cubist

Deleted
Last edited by Cubist on Wed Jul 28, 2021 6:37 am, edited 1 time in total.

by Weenie


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