cassette combination challenge

[bonj2]

Can anyone rise to this challenge:
nominate a combination of currently available, shimano compatible cassettes that would enable me to bastardize a cassette that will be between 14-28 and 14-32.
For instance, the shimano 14-25 is difficult because it has all but the smallest 3 as one block. Could use the smallest 3 off that, but then what else...
I've been looking at shimano tech docs which draw a rectangle round the ones that are fixed together as one block.

can be sram obviously, but not campag as it needs to go on a shimano-compatible freehub.
Must be 9 speed, and all sprockets must be different.

 

[Flying Dodo]

If you get 105 cassettes, they're all separate, and on my old bike I've mixed and matched to build up my ideal cassette in the past.

 

[fossyant]

Eee....gone are the days of buying single sprockets..... I get my DA 8 speed stuff from the US - single sprockets.

 

[MartinC]

http://roseversand.com/output/contr...h=283&warenbereich=&ebene=3&marke=65&sortid=3

Roseversand sell individual sprockets. Choose a cassette and decide which sprockets you want to change.

 

[andy_wrx]

So they're all riveted together into a block ?
- grind/drill the rivet heads off.

I made myself an 8sp 13-23 from a 9sp 13-25 and a 9sp 12-23, plus some 8sp spacers

Get a road 9sp cassette and a MTB one, pull them apart and take the cogs out of them you need.

The cassette will work fine on the bike with just loose cogs, it's held in place by the hub splines and the lockring

The smallest cog is the one which matters, as it's the one with the lockring, but just get a couple of cassettes with the ratios you want included in them.

e.g. Tiagra 9sp £14.99 at CRC http://www.chainreactioncycles.com/Models.aspx?ModelID=387
12-23 - 12.13.14.15.16.17.19.21.23
12-25 - 12.13.14.15.17.19.21.23.25
13-25 - 13.14.15.16.17.19.21.23.25
14-25 - 14.15.16.17.18.19.21.23.25

e.g. Deore 9sp £19.99 http://www.chainreactioncycles.com/Models.aspx?ModelID=443
11-12-13-14-16-18-21-24-28
11-12-14-16-18-21-24-28-32
11-13-15-17-20-23-26-30-34

 

[Steve Austin]

Or if you wanted to do it properly you could buy a marchisio set of sprockets. Then you could have exactly what you wanted.

 

[MacB]

I was exploring this a bit with Pete on another thread, are there any concerns over type of cassette. I get confused re hyperglide etc?

 

[PpPete]

True Steve....but that's not answering Bonj's challenge.
I've a similar conumdrum at present, and can't afford a complete Marchisio.

Any one tried removing the rivets or pins or whatever they are that hold the back few sprockets of a Shimano cassette together? I'd like to know best technique.

 

[andy_wrx]

I've answered on your other thread...

 

[Steve Austin]

True Steve....but that's not answering Bonj's challenge.
I've a similar conumdrum at present, and can't afford a complete Marchisio.

Any one tried removing the rivets or pins or whatever they are that hold the back few sprockets of a Shimano cassette together? I'd like to know best technique.

Yeh. just grind them off with a dremel. the pins are only mushroomed.

 

[bonj2]

True Steve....but that's not answering Bonj's challenge.
I've a similar conumdrum at present, and can't afford a complete Marchisio.

Any one tried removing the rivets or pins or whatever they are that hold the back few sprockets of a Shimano cassette together? I'd like to know best technique.

yes ... the reason i said it was a 'challenge' was because i was hoping the answer would be a series of links...
I was hoping it wasn't going to involve buying from america/germany/nairobi or wherever costing 3 figures of dollars, or to get the band saw and angle grinder out...
although thanks to the people that suggested that anyhow, it's a serious suggestion as to how it's possible to achieve it, so it's appreciated.

 

[bonj2]

So they're all riveted together into a block ?
- grind/drill the rivet heads off.

I made myself an 8sp 13-23 from a 9sp 13-25 and a 9sp 12-23, plus some 8sp spacers

Get a road 9sp cassette and a MTB one, pull them apart and take the cogs out of them you need.

The cassette will work fine on the bike with just loose cogs, it's held in place by the hub splines and the lockring

The smallest cog is the one which matters, as it's the one with the lockring, but just get a couple of cassettes with the ratios you want included in them.

e.g. Tiagra 9sp £14.99 at CRC http://www.chainreactioncycles.com/Models.aspx?ModelID=387
12-23 - 12.13.14.15.16.17.19.21.23
12-25 - 12.13.14.15.17.19.21.23.25
13-25 - 13.14.15.16.17.19.21.23.25
14-25 - 14.15.16.17.18.19.21.23.25

e.g. Deore 9sp £19.99 http://www.chainreactioncycles.com/Models.aspx?ModelID=443
11-12-13-14-16-18-21-24-28
11-12-14-16-18-21-24-28-32
11-13-15-17-20-23-26-30-34

ok ... when you say "pull" it apart, how much difficulty does it take to separate sprockets that are as one block...

the last one, the 14-25 is what i have. I think for most situations it will be ok but may be a bit grindy for some steep technical climbs...

 

[bonj2]

I was exploring this a bit with Pete on another thread, are there any concerns over type of cassette. I get confused re hyperglide etc?

marketing bollox.

 

[bonj2]

Yeh. just grind them off with a dremel. the pins are only mushroomed.

ah you can do that can you. interesting. are the spacers between the rivets that you grind non-sacrificial?

 

[Steve Austin]

The spacers are just plastic. If you want to sacrifice them, thats your filthy business.