[CXR94Di2]

I have combined/ mixed two cassettes( both cs6800 11speed) to give me a 14-32 cassette. Its great, I can attain 29 – 30 mph on the flat without have to spin crazily fast, have lovely mid range close ratios and 32T for bailout or steep hills. Ratios are 14 15 16 17 18 19 20 22 25 28 32.

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[oldbaldie]

Thanks – very helpful

Thanks – very helpful

 

I dont think I need 11 & 12 toth sprockets … but I reckon I may well need the 32! And closing up the gaps in the mid range will really help with group rides when I am struggling to keep up

[madcarew]

If you want to mix and match

If you want to mix and match more, if you have a drill press you can drill out the retaining pins on the ‘one piece’ parts of the clusters, or get a local engineer to do it. Be warned, they are hardened, so you need lots of pressure, slow speed, and cutting oil. 

[CXR94Di2]

You need a 14-28 Cass and 11
You need a 14-28 Cass and 11-32 Cass. Combine to give. 14-15-16-17-18-19-20-22-25-28-32

[oldbaldie]

Hi CRX94Di2

Hi CRX94Di2

I have an 11 speed 11-28 cassette

I would like to move to 14-32 (or similar)

Obviously that will mean buying an 11-32 cassette

How close can I get to my ideal choice of: 14 15 16 17 18 19 (20-22)(25-28-32) please?

 

[CXR94Di2]

You could have 13 14* 15 16
You could have 13 14* 15 16 17 18 (20-22)(25-28-32)

*14t comes from 14-28 cassette. Either delete 14t and add 19t

The brackets ratios are gear clusters from the 11-32 cassette, or you change the 20-22 for 19-21 cluster. Just depends where you want the specific gear to be. Try it its dead easy to do. Chain whip and cass socket is all that is needed.

[fukawitribe]

CXR94Di2 wrote:No, the small

CXR94Di2 wrote:

No, the small gears have spacers built into the casting, larger gears separate spacers.

Aye, poor description, I meant apart from the spacers (only considering the small end of the block).

For some reason I thought the outer/internal section was differently machined on the terminal cogs, e.g. something to do with the lock-ring, but no idea why in particular and it’s mostly wrong by the look of it. Looking at pictures online and cogs here the only real difference is the extra stripes/ridges on the outer face (and the part numbers) on the terminating cogs.

CXR94Di2 wrote:

As long as cassette nips tight on the freehub you’re good to go

Grand – cheers for the heads-up.

[CXR94Di2]

No, the small gears have
No, the small gears have spacers built into the casting, larger gears separate spacers. As long as cassette nips tight on the freehub you’re good to go

[fukawitribe]

Aaaaaaah – enlightenment. I
Aaaaaaah – enlightenment. I had the impression that the final position cog had some magic voodoo shaping on them, and so you needed a specific one, but now looking at my spare 11-28 CS-6800 the only real difference I can see appears to be some striations on the inner part of the upper/outer face (lock-ring friction thingy I guess) – is that about right ?

I so i’m knocking up that 13-32 tonight..

[adam900710]

Right, EV manual is much
Right, EV manual is much reliable than Shimano Japan.
And Nice combination and clever idea.
Thanks a lot, CXR94Di2.

BTW, if I have 11/28 and 11/32, may I create a 13/28 or 13/32?
I’m a little unsure to use 13 cog without spacer as the smallest cog.

Thanks.

[CXR94Di2]

adam900710 wrote:CXR94Di2

adam900710 wrote:

CXR94Di2 wrote:

The last three from the 11-32 cass are 25,28,32.

If you then use the 14-28 cass for the other ratios.
You could also use a 12-25 cass. Check out shimano website to see which cassette combinations give you the desired ratios

See my original post for complete ratios

Interesting, as Shimano Japan says the last 3 cogs for 11/32 cassette is 23-25-32:
http://cycle.shimano.co.jp/content/sic-bike/ja/home/components1/road/ultegra/cs-6800.html
See オプション 5 (Option 5)

Maybe Shimano Japan is wrong?

See this link to technical pdf from their website
http://si.shimano.com/php/download.php?file=pdf/ev/EV-CS-6800-3602B.pdf

It’s a perfect look up table to see which ratios you can mix and match

[adam900710]

CXR94Di2 wrote:
The last

CXR94Di2 wrote:

The last three from the 11-32 cass are 25,28,32.

If you then use the 14-28 cass for the other ratios.
You could also use a 12-25 cass. Check out shimano website to see which cassette combinations give you the desired ratios

See my original post for complete ratios

Interesting, as Shimano Japan says the last 3 cogs for 11/32 cassette is 23-25-32:
http://cycle.shimano.co.jp/content/sic-bike/ja/home/components1/road/ultegra/cs-6800.html
See オプション 5 (Option 5)

Maybe Shimano Japan is wrong?

[CXR94Di2]

adam900710 wrote:Interested

adam900710 wrote:

Interested in how to mix them.

I have 6800 11/32 cassette, but the largest 3 cogs are in one piece.
I hate the last 25 to 32 jump, hoping to insert 28 cog between them and remove the 11 cog.

But I didn’t find a good idea to do it.

The last three from the 11-32 cass are 25,28,32.

If you then use the 14-28 cass for the other ratios.
You could also use a 12-25 cass. Check out shimano website to see which cassette combinations give you the desired ratios

See my original post for complete ratios

[adam900710]

Interested in how to mix
Interested in how to mix them.

I have 6800 11/32 cassette, but the largest 3 cogs are in one piece.
I hate the last 25 to 32 jump, hoping to insert 28 cog between them and remove the 11 cog.

But I didn’t find a good idea to do it.

[Simon E]

Interesting, but I’d find
Interesting, but I’d find those ratios a bit too close together when on the small chainring.

[CXR94Di2]

I now have 3 sets of
I now have 3 sets of cassettes one 10 speed that came with my kickr (don’t need it as all my bikes are 11 speed) to sell. One 12-25 cs6800 and the separated sets. I will keep them for spares 🙂

[Author]

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