Shimano 6800 chain set compatible with 6700 group?

Discuss light weight issues concerning road bikes & parts.
Post Reply
alastairb
Posts: 102
Joined: Thu Dec 12, 2013 2:36 pm

by alastairb

I'm hoping for a bit of technical advice please. I want to run an 11 speed Ultegra 6800 chain set with the rest of an Ultegra 10 speed group and would like to find out if anybody is running this combination and if it's all working ok?
I can't really see why it wouldn't work - the chain rings are the same distance apart and the roller width of the chain is the same for both speeds - but it's a lot of cash to lay out to find it's an issue.
Any help much appreciated.

dmoneysworks
Posts: 313
Joined: Tue Aug 07, 2012 6:35 am
Location: Parakai, New Zealand

by dmoneysworks

yes but it's recommended to an run a 11 speed chain as well. This is already well documented and used by many people I know.

by Weenie


alastairb
Posts: 102
Joined: Thu Dec 12, 2013 2:36 pm

by alastairb

thanks dmoneysworks. I thought chain was usually matched to the cassette (which will be 10 speed) not to the chain set?

dmoneysworks
Posts: 313
Joined: Tue Aug 07, 2012 6:35 am
Location: Parakai, New Zealand

by dmoneysworks

from memory I read the article on velonews - I'll try find it again. FOUND IT - http://tinyurl.com/lh3yaka :thumbup:

Antoine
Posts: 449
Joined: Tue May 03, 2011 6:36 pm
Location: France

by Antoine

I just rode 2 mountainous cyclosportives (170 kms/3200 + and 140 kms / 2700 +) with a 6800 crank and a 7800 group :

6800 crank 11s and the rest 7800 10s including the chain.

I just changed the crank because I needed a compact and it worked perfectly (in fact better because my 7800 chainrings have 17000 kms).

the 11s speed chain is narrower so I don"t know if it would work with a 10s cassette.

User avatar
rainerhq
Posts: 642
Joined: Wed Dec 15, 2010 10:32 am
Location: Estonia

by rainerhq

What about vice versa: 6700 crank and all other stuff 6800 (6870)?
"Nothing compares to the simple pleasure of a bike ride"
Jamis Renegade Expert
Spark 900 RC

User avatar
btompkins0112
Posts: 2693
Joined: Fri Feb 11, 2011 3:04 am
Location: Mississippi

by btompkins0112

Should be fine as well.....I have run 11s on a 10s crank without an appreciable difference in performance. That being said I rarely exit the big ring so I can't speak for the shifting too much, but when I did shift it worked.

efeballi
Posts: 471
Joined: Tue Dec 17, 2013 2:50 pm
Location: Body in Milano, mind in Istanbul

by efeballi

The internal width of an 11s chain is the same as 10s, and the external width is a bit less(0.1 mm if memory serves me right). So no issues with 11s chain meshing with the 10s cassette and rings. The ring spacing is less on Shimano 11s cranks, so 11s chain is ideal. However I don't think it will work that bad with a 10s chain.
I remember someone testing a DA 9000 chain on an otherwise 7900 group and mentioning an improvement in shifting.



Sent from my iPhone using Tapatalk
SHUT UP LEGS
2015 Giant Propel Advanced
2013 KTM Strada mod. GOT IT BACK!
2011 Pinarello Dogma 60.1(loaner)
2011 Scott SUB 45(sold)

Politecnico di Milano Ingegneria Meccanica

alastairb
Posts: 102
Joined: Thu Dec 12, 2013 2:36 pm

by alastairb

Thanks all; sounds like it should be fine.

by Weenie


Post Reply
  • Similar Topics
    Replies
    Views
    Last post