Have questions or want to discuss cycling? Join Now or Sign In to participate in the BikeRide community.

New: Take part in the November Giveaway for the Fiido D11 folding sport e-bike


7 speed chain
#1
I am currently running a thread on derailleurs regarding 7 speed blocks. However, another bump has appeared in my road - scarcity of 7 speed chains.
I really wanted Schramm, but can't find one, but Competitviecyclist have just told me that the Shimano 9 speed chain is compatible with 7 speed. I am sceptical so I decided to canvas you guys. Can anyone confirm this? Thanks
  Reply
#2
You can use any 7/8/9 speed chain with a 7 speed bike. My preferences are KMC and SRAM; because on the master link. Amazon stocks them - and many other bike parts.
Nigel
  Reply
#3
Thanks again nf. I think that I have garnered all of the 7 speed information that I can, so I'll now leave everyone in peace.
PS I don't have enough riding life left to justify the expense of upgrading, so I will just have to keep searching.
Thanks again nf. I think that I have garnered all of the 7 speed information that I can, so I'll now leave everyone in peace.
PS I don't have enough riding life left to justify the expense of upgrading, so I will just have to keep searching.
  Reply
#4
The 9 speed chain you refer to is narrower & lighter than the typical KMC 7 & 8 speed chains, which have 7.3mm pins. Some models have bulgy looking side plates too.
KMC 9 speed chains have 6.6mm pins and rollers that are 1/128" narrower than 7 speed chains, so no big deal.
If you want an inexpensive quality chain that looks good on an older bike I use the KMC Z72. It's brownish, it is 7.1mm pin length, so it's reasonably narrow, it uses the KMC Missing Link II connector if you want spares.
It is also very reasonably priced for looking so right. No silver or chrome.
Expect to use a tool to unlink a missing link connector, they rarely come apart without a fight.
Most recently I put a spare, used, Z72 on a Trek Navigator 2.0 Comfort bike with SRAM 1:1 derailleur & shifters, it shifts very nicely, I like it. Very strong too, I'm a big boy.
  Reply
#5
(01-15-2014, 05:32 PM)1FJEF Wrote:  The 9 speed chain you refer to is narrower & lighter than the typical KMC 7 & 8 speed chains, which have 7.3mm pins. Some models have bulgy looking side plates too.
KMC 9 speed chains have 6.6mm pins and rollers that are 1/128" narrower than 7 speed chains, so no big deal.
If you want an inexpensive quality chain that looks good on an older bike I use the KMC Z72. It's brownish, it is 7.1mm pin length, so it's reasonably narrow, it uses the KMC Missing Link II connector if you want spares.
It is also very reasonably priced for looking so right. No silver or chrome.
Expect to use a tool to unlink a missing link connector, they rarely come apart without a fight.
Most recently I put a spare, used, Z72 on a Trek Navigator 2.0 Comfort bike with SRAM 1:1 derailleur & shifters, it shifts very nicely, I like it. Very strong too, I'm a big boy.

Coincidently I have just ordered a KMC chain - KMC Z51, listed has 6/7/8 speed. It was relatively cheap, so it won't be a disaster if it's not what I want. My racing days are long gone, I only do fitness riding now, so it won't get punished.
Coincidently I have just ordered a KMC chain - KMC Z51, listed has 6/7/8 speed. It was relatively cheap, so it won't be a disaster if it's not what I want. My racing days are long gone, I only do fitness riding now, so it won't get punished.
  Reply
#6
The Z51 is fine, I have that chain on at least one of my bikes.
Nigel
  Reply


Possibly Related Threads...

Forum Jump:

[-]
10 Latest Posts
Seeking recommendations
Yesterday 06:18 PM
Please help me identify this old bicycle...
Yesterday 02:46 AM
What is your dream cycling destination?
Yesterday 02:33 AM
LYGIE AND ATALA WINTER PROJECTS
11-30-2021 10:34 AM
Yet another bike ID thread (Pseudo-Batta...
11-30-2021 06:18 AM
Schwinn meridian fork replacement
11-30-2021 12:41 AM
Help! Trying to identify this bike
11-29-2021 07:20 PM
New Memeber
11-27-2021 06:51 PM
Budget Carbon Frames! ...who has bought...
11-26-2021 12:45 AM
Cycling motivation through the dark mont...
11-25-2021 06:28 PM

[-]
Join BikeRide on Strava
Feel free to join if you are on Strava: www.strava.com/clubs/bikeridecom

[-]
Top 5 Posters This Month
no avatar 1. ReapThaWhirlwind
27 posts
no avatar 2. Jesper
17 posts
no avatar 3. jeffg
10 posts
no avatar 4. steven chen
6 posts
no avatar 5. Zviedrs
5 posts