Cassette Cogs in Wrong Order

User avatar
peter
Posts: 1039
Joined: Sun Nov 25, 2007 7:39 pm
Location: sydney

Cassette Cogs in Wrong Order

Postby peter » Wed Nov 01, 2017 7:33 pm

So I have ridden more than 2000km since the last time I dismantled the cassette for cleaning, I always get this strange feeling that down shifting sometimes feels like up shifting.

Mystery solved today! An unintentional discovery, I installed one of the cogs in the wrong order. :lol:

Image

User avatar
biker jk
Posts: 5807
Joined: Tue Nov 17, 2009 6:18 pm
Location: Sydney

Re: Cassette Cogs in Wrong Order

Postby biker jk » Wed Nov 01, 2017 8:01 pm

There's a spacer missing as well between those cogs in the wrong order.

koshari
Posts: 901
Joined: Mon Sep 09, 2013 5:33 pm

Re: Cassette Cogs in Wrong Order

Postby koshari » Wed Nov 01, 2017 8:13 pm

peter wrote:So I have ridden more than 2000km since the last time I dismantled the cassette for cleaning, I always get this strange feeling that down shifting sometimes feels like up shifting.


iam surprised it shifted at all! (its not april the 1st by any chance btw?)
Image

User avatar
Bunged Knee
Posts: 728
Joined: Fri Mar 27, 2015 12:29 pm
Location: Not drowning in Parramatta river yet

Re: Cassette Cogs in Wrong Order

Postby Bunged Knee » Wed Nov 01, 2017 8:20 pm

This is qualified as a I`m a champion bike mechanic. :)
ID please? What ID? My seat tube ID is 27.2mm or 31.6mm depending on what bikes I ride today.thanks...

User avatar
peter
Posts: 1039
Joined: Sun Nov 25, 2007 7:39 pm
Location: sydney

Re: Cassette Cogs in Wrong Order

Postby peter » Wed Nov 01, 2017 8:39 pm

biker jk wrote:There's a spacer missing as well between those cogs in the wrong order.


Spacer is there but not showing in that camera angle.

User avatar
peter
Posts: 1039
Joined: Sun Nov 25, 2007 7:39 pm
Location: sydney

Re: Cassette Cogs in Wrong Order

Postby peter » Wed Nov 01, 2017 8:42 pm

koshari wrote:iam surprised it shifted at all! (its not april the 1st by any chance btw?)


It shifts smoothly, otherwise would have investigated and discovered the stuff up earlier. :D

uart
Posts: 930
Joined: Sat Jan 02, 2016 9:15 pm
Location: Newcastle

Re: Cassette Cogs in Wrong Order

Postby uart » Wed Nov 01, 2017 8:44 pm

peter wrote:
biker jk wrote:There's a spacer missing as well between those cogs in the wrong order.


Spacer is there but not showing in that camera angle.


I'm definitely not seeing it.

User avatar
Bunged Knee
Posts: 728
Joined: Fri Mar 27, 2015 12:29 pm
Location: Not drowning in Parramatta river yet

Re: Cassette Cogs in Wrong Order

Postby Bunged Knee » Wed Nov 01, 2017 8:57 pm

uart wrote:
peter wrote:
biker jk wrote:There's a spacer missing as well between those cogs in the wrong order.


Spacer is there but not showing in that camera angle.


I'm definitely not seeing it.


Agreed. No spacer between the 6th and 7th cassettes.
ID please? What ID? My seat tube ID is 27.2mm or 31.6mm depending on what bikes I ride today.thanks...

User avatar
trailgumby
Posts: 12808
Joined: Sat Jan 03, 2009 5:30 pm
Location: Northern Beaches, Sydney
Contact:

Re: Cassette Cogs in Wrong Order

Postby trailgumby » Wed Nov 01, 2017 10:15 pm

peter wrote:
biker jk wrote:There's a spacer missing as well between those cogs in the wrong order.


Spacer is there but not showing in that camera angle.

Agreed, although I can see why people thing it's not. Combination of the out-of-sequence cog and camera angle.

uart
Posts: 930
Joined: Sat Jan 02, 2016 9:15 pm
Location: Newcastle

Re: Cassette Cogs in Wrong Order

Postby uart » Wed Nov 01, 2017 10:21 pm

trailgumby wrote:Agreed, although I can see why people thing it's not. Combination of the out-of-sequence cog and camera angle.

Yes, it's a pretty good optical illusion. :D

User avatar
Duck!
Expert
Posts: 6266
Joined: Tue May 21, 2013 8:21 pm
Location: On The Tools

Re: Cassette Cogs in Wrong Order

Postby Duck! » Wed Nov 01, 2017 11:00 pm

The chain is sitting over one spacer, and the other is partly hidden by the out-of-sequence smaller sprocket.

I have the occasional dumb moment like this, usually the next sprocket after a set pinned to a spider; the spider includes the spacer to the next sprocket, but I'll slip an extra spacer on where it shouldn't be, then end up with two sprockets & no spacer. And I do this for a living! :-P Gets discovered in short order though, and is usually a signal to crank up the coffee machine. :-P
I had a thought, but it got run over as it crossed my mind.

User avatar
peter
Posts: 1039
Joined: Sun Nov 25, 2007 7:39 pm
Location: sydney

Re: Cassette Cogs in Wrong Order

Postby peter » Wed Nov 01, 2017 11:03 pm

If a picture is worth a thousand words, then a video is worth a million. :D

I guest the situation could have illustrated more clearly by simply taking a top down picture.

User avatar
silentC
Posts: 2234
Joined: Mon May 05, 2014 5:24 pm
Location: Far South Coast NSW

Re: Cassette Cogs in Wrong Order

Postby silentC » Thu Nov 02, 2017 8:48 am

Classic!

When I take mine off to clean or whatever, I thread a shoe string through the whole cluster and tie a knot in it so that it's not possible to get anything out of order.
"If your next bike does not have disc brakes, the bike after that certainly will"
- Me

User avatar
find_bruce
Moderator
Moderator
Posts: 6942
Joined: Mon May 09, 2011 8:42 pm
Location: Sydney

Re: Cassette Cogs in Wrong Order

Postby find_bruce » Thu Nov 02, 2017 9:27 am

Interesting optical illusion - you can see the spacer through the holes in the cog, but the perspective makes it look like its missing

eeksll
Posts: 2246
Joined: Tue Oct 20, 2009 10:36 pm

Re: Cassette Cogs in Wrong Order

Postby eeksll » Thu Nov 02, 2017 9:49 am

weird optical illusion, I was convinced there was no spacer between those 2 cogs as well

User avatar
trailgumby
Posts: 12808
Joined: Sat Jan 03, 2009 5:30 pm
Location: Northern Beaches, Sydney
Contact:

Re: Cassette Cogs in Wrong Order

Postby trailgumby » Thu Nov 02, 2017 10:01 am

Duck! wrote: And I do this for a living! :-P Gets discovered in short order though, and is usually a signal to crank up the coffee machine. :-P
:lol: :lol: I can imagine the internal dialogue at this particular moment :lol:

koshari
Posts: 901
Joined: Mon Sep 09, 2013 5:33 pm

Re: Cassette Cogs in Wrong Order

Postby koshari » Thu Nov 02, 2017 12:42 pm

eeksll wrote:weird optical illusion, I was convinced there was no spacer between those 2 cogs as well


as was i, on closer inspection you can see top of the the plastic spacer material through the holes in the nearest sprocket.
Image

User avatar
hamishm
Posts: 429
Joined: Wed Oct 28, 2009 11:31 pm

Re: Cassette Cogs in Wrong Order

Postby hamishm » Fri Nov 03, 2017 12:48 pm

Yikes, I'm going to check the bikes right now. I have this feeling too some times.

User avatar
Duck!
Expert
Posts: 6266
Joined: Tue May 21, 2013 8:21 pm
Location: On The Tools

Re: Cassette Cogs in Wrong Order

Postby Duck! » Fri Nov 03, 2017 1:50 pm

On a divergent but related note, be exceptionally careful when handling Campagnolo cassettes, because for reasons known only to them, 10 & 11-sp. cassettes have unequal sprocket spacings, therefore different thickness spacers. If you get them in the wrong order the shifting will go very haywire.
I had a thought, but it got run over as it crossed my mind.

Sharkey
Posts: 195
Joined: Wed Apr 04, 2012 3:32 pm

Re: Cassette Cogs in Wrong Order

Postby Sharkey » Fri Nov 03, 2017 4:29 pm

Duck! wrote:On a divergent but related note, be exceptionally careful when handling Campagnolo cassettes, because for reasons known only to them, 10 & 11-sp. cassettes have unequal sprocket spacings, therefore different thickness spacers. If you get them in the wrong order the shifting will go very haywire.


I recently purchased a Miche cassette for my 11 speed Campag bike along with a new wheel for my Shimano bike. The cassette had broken out of its packaging and had not been zip-tied together. I had to completely dismantle the box to find all the 20+ cogs and spacers and then put it back together in the correct order. Sounds like it was lucky that it worked first time.

Who is online

Users browsing this forum: open roader