"The 33"-Road Bike Racing - Campag. Ghibli disc only fits 9 sprockets?

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bdcheung
07-09-08, 09:30 AM
http://www.cyclingnews.com/photos/2008/tech/probikes/cadel_evans_ridley_dean08/ce_rd_cassette.jpg

From CyclingNews:

An 11-21T cassette is on hand for Cadel but only nine sprockets fit on the Ghibli disc.
Photo ©: Ben Atkins/Cyclingnews.com

:wtf:

edit: the more I search, the more I find that Campagnolo actually makes a special cassette for use with this disc wheel... 9 sprockets with 10-speed spacing! my brain is about to explode!

cslone
07-09-08, 09:55 AM
Your edit is correct. The Ghibli uses 9's with 10's spacing. Not anyone I've ever asked has truly known why.
acorn_user
07-09-08, 10:46 AM
The freehub body is too narrow. I suppose that if you can afford a Ghibli, you can afford a special cassette. At least it doesn't require an 8 speed Record Titanium Exa-Drive cassette.....

Bob Dopolina
07-09-08, 05:52 PM
Your edit is correct. The Ghibli uses 9's with 10's spacing. Not anyone I've ever asked has truly known why.

Because there is a space issue and an issue of the rr der hitting the disc while in the 21 or 23.

Correct about the shorter freehub body.

The disc would have to be completely redesigned to allow for 10 speeds. Camapagnolo doesn't sell enough to warrant this.

There are 2 different cassettes available: 11-21 and 11-23 (or is it 12-23?).
bdcheung
07-09-08, 06:20 PM
Still seems like shoddy design to me.
Bob Dopolina
07-09-08, 06:22 PM
Still seems like shoddy design to me.

If your using a disc for a TT how many gears do you need?

There wasn't a problem until Campagnolo went to 10-spd. It just didn't make sense (economically) to redesign the disc.

There may also be aero considerations.
bdcheung
07-09-08, 06:33 PM
The number of gears needed would depend on the parcours. in the end, no amount of point-making or arguing on this forum will change the design, so it's all moot.

just seemed odd to me, is all. Especially now that Campagnolo is moving to 11-speed, I wonder if they'll revisit the capacity of the disc.
Bob Dopolina
07-09-08, 06:57 PM
The number of gears needed would depend on the parcours. in the end, no amount of point-making or arguing on this forum will change the design, so it's all moot.

just seemed odd to me, is all. Especially now that Campagnolo is moving to 11-speed, I wonder if they'll revisit the capacity of the disc.

I was wondering this myself.