Cassette Cogs in Wrong Order

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peter
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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:

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biker jk
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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
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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?)
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Bunged Knee
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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...

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peter
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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.

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peter
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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

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uart
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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.

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Bunged Knee
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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...

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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.

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uart
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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

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Duck!
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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.

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peter
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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.

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silentC
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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

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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
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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

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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
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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.
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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.

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Duck!
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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.

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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.

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