The Shimano 11s to 12s compatibility thread

Back by popular demand, the general all-things Road forum!

Moderator: robbosmans

CyclingGiraffe
Posts: 328
Joined: Sat Jul 18, 2020 10:04 pm

by CyclingGiraffe

violino wrote:
Sat Oct 29, 2022 8:37 am
Hi,
since new calipers (br-r7170/8170) are now officially compatible with previous generation STIs (st-r7020/8020 so even regardless of servo wave), do you think it would be worth a shot to try e.g. br-r7170 with even older st-rs685 (this one actually has servo wave) non-series Ultegra level STI?
Well, the official compatibility chart says no, but I suppose you could try it, with the understanding that it may not work.

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

by Ritxis

violino wrote:
Sat Oct 29, 2022 8:37 am
Hi,
since new calipers (br-r7170/8170) are now officially compatible with previous generation STIs (st-r7020/8020 so even regardless of servo wave), do you think it would be worth a shot to try e.g. br-r7170 with even older st-rs685 (this one actually has servo wave) non-series Ultegra level STI?

I have gone from Ultegra Di211 to 12, I don't notice any difference from 8070 to 8170...........with the new calipers, you gain that 10% extra space and bleeding is more efficient......

by Weenie


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

www.starbike.com



E46M3
Posts: 8
Joined: Wed Jul 14, 2021 3:11 am
Location: Australia

by E46M3

Has anyone actually installed the br8170 calipers on 11s di2?

I managed to accidently find them on sale so pulled the trigger considering price alone and easier bleeding, still not sure about the 10% clearance but I guess we'll see.

milanv
Posts: 611
Joined: Wed Mar 10, 2021 9:03 am

by milanv

E46M3 wrote:
Tue Nov 29, 2022 6:04 am
Has anyone actually installed the br8170 calipers on 11s di2?

I managed to accidently find them on sale so pulled the trigger considering price alone and easier bleeding, still not sure about the 10% clearance but I guess we'll see.
And did you read this thread? Yes, better clearence mentioned many times, not only here.

E46M3
Posts: 8
Joined: Wed Jul 14, 2021 3:11 am
Location: Australia

by E46M3

milanv wrote:
Tue Nov 29, 2022 6:56 am
E46M3 wrote:
Tue Nov 29, 2022 6:04 am
Has anyone actually installed the br8170 calipers on 11s di2?

I managed to accidently find them on sale so pulled the trigger considering price alone and easier bleeding, still not sure about the 10% clearance but I guess we'll see.
And did you read this thread? Yes, better clearence mentioned many times, not only here.
What's with the hostility? Of course I read the thread, please point me to a post where a user has confirmed the marketting and actually installed them?

milanv
Posts: 611
Joined: Wed Mar 10, 2021 9:03 am

by milanv

Marketing? 8)
milanv wrote:
Tue Sep 27, 2022 9:36 pm
Yes
viewtopic.php?f=3&t=170626
milanv wrote:
Sat Aug 20, 2022 8:01 pm
Brennendw wrote:
Sat Aug 20, 2022 7:40 pm
Can't find anything online or in the forum,

Wondering if you guys have any idea of the Newer 12 speed BR-R9270 calipers will work with the old 11 speed dura ace levers?

Can't see why not..?

Anybody tried this?
Yes, it is working very well, for example in one of my bikes.

Here you have many information about it from other people.
viewtopic.php?t=156208

Compatibility chart from Shimano
https://productinfo.shimano.com/#/com?c ... acid=C-499
----
milanv wrote:
Sun Sep 04, 2022 5:26 pm
Conradsleight wrote:
Sun Sep 04, 2022 4:41 pm
Conradsleight wrote:
Sat Aug 27, 2022 4:02 pm
Can anyone advise on what the verdict is on the new brake calliper clearance compared to 9170?

I just got a Factor Ostro built up on a 9170 groupset and already running into rubbing issues. Wondering if it's worth upgrading the callipers for the extra brake clearance?
Can anyone shed some light on this? Are they much of an improvement in terms of clearance?
So again, yes, yes, yes, no marketing, yes.
----
milanv wrote:
Sun Sep 04, 2022 6:42 am
NordicSal wrote:
Fri Aug 26, 2022 4:20 pm
Can you have 12s shifters and calipers on 11s gears?
----
milanv wrote:
Sat Aug 20, 2022 8:01 pm
Brennendw wrote:
Sat Aug 20, 2022 7:40 pm
Can't find anything online or in the forum,

Wondering if you guys have any idea of the Newer 12 speed BR-R9270 calipers will work with the old 11 speed dura ace levers?

Can't see why not..?

Anybody tried this?
Yes, it is working very well, for example in one of my bikes.

Here you have many information about it from other people.
viewtopic.php?t=156208

Compatibility chart from Shimano
https://productinfo.shimano.com/#/com?c ... acid=C-499
----
And it is not marketing, bigger space for rotors truly exists.

JaeOne3345
Posts: 142
Joined: Wed Apr 21, 2010 5:27 am

by JaeOne3345

E46M3 wrote:
Tue Nov 29, 2022 6:04 am
Has anyone actually installed the br8170 calipers on 11s di2?

I managed to accidently find them on sale so pulled the trigger considering price alone and easier bleeding, still not sure about the 10% clearance but I guess we'll see.
It works just fine. I have the 9270 calipers installed with 8070 levers. I have installed 8170 calipers for a few friends with 80xx/91xx levers.

Yes, the clearance is real. Many people are looking at the bleed block width being the same and assuming the clearance claims are BS, but the clearance comes from the piston retraction.

User avatar
TerryDi2C
in the industry
Posts: 270
Joined: Wed Nov 27, 2019 7:24 pm
Contact:

by TerryDi2C

Yes, it works just fine ;-).

Personally, I think the extra clearance is great... but it's still very little. Sure, there's 10% extra clearance and that's cool... but 10% of next-to-nothing is still next-to-nothing :).

MichaelB
Posts: 993
Joined: Tue Apr 22, 2008 4:31 am

by MichaelB

TerryDi2C wrote:
Tue Nov 29, 2022 8:01 pm
Yes, it works just fine ;-).

Personally, I think the extra clearance is great... but it's still very little. Sure, there's 10% extra clearance and that's cool... but 10% of next-to-nothing is still next-to-nothing :).
In Aussie parlance, we call that extra clearance "a bee's dick" :thumbup:

Sock3t
Posts: 448
Joined: Mon Jun 11, 2018 2:20 am

by Sock3t

E46M3 wrote:
Tue Nov 29, 2022 6:04 am
Has anyone actually installed the br8170 calipers on 11s di2?

I managed to accidently find them on sale so pulled the trigger considering price alone and easier bleeding, still not sure about the 10% clearance but I guess we'll see.
Where'd you find them on sale?

prenard
Posts: 22
Joined: Tue May 26, 2009 10:13 am

by prenard

Maddie wrote:
Fri Oct 08, 2021 10:45 am
I was a bit surprised that Shimano gives official clearance to using old stis with new calipers. But that's good news. I will try the opposite and build new stis together with 9170 calipers. It is very very rare that I have the known tingtingting after descents so I believe I don't really need new calipers and can get away with the old ones. But I do like the better modulation of my grx levers (with servo) and I hope this will transfer to my 9270 levers and 9170 calipers. Might take a while to find out though...

Gesendet von meinem SM-G973U1 mit Tapatalk
Did you try to use ST-9270 shifters with BR-R9170 calipers ? Good result ?

Thanks for your help !

expatscot
Posts: 63
Joined: Tue Jan 05, 2016 11:20 pm
Location: North Yorkshire, UK

by expatscot

MichaelB wrote:
Tue Nov 29, 2022 10:53 pm
TerryDi2C wrote:
Tue Nov 29, 2022 8:01 pm
Yes, it works just fine ;-).

Personally, I think the extra clearance is great... but it's still very little. Sure, there's 10% extra clearance and that's cool... but 10% of next-to-nothing is still next-to-nothing :).
In Aussie parlance, we call that extra clearance "a bee's dick" :thumbup:
UK engineering parlance is "gnat's cock".
Look 695 aerolight eTap 11
Boardman TTE eTap 11
Brompton S2 LX ti custom
Trek 5500 1994 Sram Red 10
Boardman CXR9.8 eTap 11
Open UPPER - DA 9270
Ridley x-fire Sram Red 10

and lots of non- WW others.

User avatar
Cannoli
Posts: 533
Joined: Thu Nov 12, 2020 1:53 pm
Location: Mid-Atlantic, USA

by Cannoli

Will the DA-9200 crankset and chainrings work with the 11-speed front and rear derailleur and cassette? I assume it will but am curious if anyone has experience with this. I already run the 12-speed chain on my DA-9100 setup
Canyon Aeroad CFR Di2 | Canyon Ultimate SLX 9.0 Di2 | Trek Domane SL5 Disc (Gravel Bike / Fly-Away Road Bike) | Orbea Tera H-30 Disc (Touring Bike)

harblhat
Posts: 187
Joined: Mon Jul 18, 2011 12:18 am

by harblhat

The chainring spacing is different between 11 to 12 speed. 12 speed chainrings are closer together. Front shifting will work, but not perfectly.

Maddie
Posts: 1530
Joined: Tue Oct 17, 2017 5:44 am

by Maddie

prenard wrote:
Sat Jan 07, 2023 6:52 pm
Maddie wrote:
Fri Oct 08, 2021 10:45 am
I was a bit surprised that Shimano gives official clearance to using old stis with new calipers. But that's good news. I will try the opposite and build new stis together with 9170 calipers. It is very very rare that I have the known tingtingting after descents so I believe I don't really need new calipers and can get away with the old ones. But I do like the better modulation of my grx levers (with servo) and I hope this will transfer to my 9270 levers and 9170 calipers. Might take a while to find out though...

Gesendet von meinem SM-G973U1 mit Tapatalk
Did you try to use ST-9270 shifters with BR-R9170 calipers ? Good result ?

Thanks for your help !
Yes, it works very well.

by Weenie


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

www.starbike.com



Post Reply