Seabass_First

Also Campy hubs only accept campy shaped cassettes, and everything else is Shimano compatible?

nfmisso

Currently, everything is either Campy or Shimano compatible.

For Shimano:
* There is no difference between 8 and 9.
* 10 is a bit narrower than 8/9, thus a 10 speed cassette plus a spacer will fit on a 8/9.
* 11 speed is a bit wider than 8/9.

Campy - another contributor will have to answer.

Tim_Iowa

Shimano 8, 9, and 10 speeds all use the same freehub body. Shimano 11-speed freehubs are longer to fit the wider cassette.

Campagnolo 8 and 9 speeds use the same freehub body, and Campagnolo 10 and 11-speeds use another (longer) freehub body.

Campagnolo and Shimano spline patterns are different, so you can't fit a Campy cassette on a Shimano-compatible freehub, nor vice-versa.
However, some manufacturers (Miche, for example) offer Campy-spaced cassettes that fit on a Shimano freehub body (which are much more widespread than Campy hubs).

Campagnolo and Shimano also have different cassette spacing (space between cogs), except for 11 speed where the spacing matches up.

So, if you decide to go with 11 speeds, you could use Campy shifters and derailleurs with Shimano-compatible cassette and hubs.

alcjphil

Campagnolo 8 speed is different than 9,10,11 speed which all use the same cassette body

Tim_Iowa

Thanks for the correction. I don't see much Campagnolo.

Personally, I haven't used any Campy stuff newer than 8 speed Ergo (which I like), but never with Campy hubs.

fietsbob

In the Past , there was a steel spline Campagnolo made cassette driver made to use Shimano cogs ,
at the time, it was a $100 part.

alcjphil

Campagnolo wheels are available in both Campy and Shimano cassette versions, so they still make freehub bodies for either

Seabass_First

OK I have a 10 speed Campy Bar-end shifter set i want to build a drive train around, and need to look for hubs/wheel sets for it... I'm hoping to find something at the bike swap this weekend. could anyone out there in the interwebs give me a MM measurement of the campy 9,10,11 speed freehub?

alcjphil

You don't need measurements. Campagnolo freehub bodies are very different in appearance from Shimano ones so you can tell just by looking at them what they are.
Campagnolo:
NEW Campagnolo Fulcrum Freehub Body FOR Campagnolo 9 10 11 Cassettes OS Axle | eBay

Shimano:
Robot Check

Odds are that if you find a wheel with a 10 speed cassette on it you will be able to see the brand name of the cassette

andr0id

The difference between an 8/9/10 speed cassette body and an 11 speed cassette is 0.8mm.

HillRider

I thought Campagnolo's wheels with Campy's name on them were Campy-compatible only. Campy's second tier Fulcrum wheels are indeed available with either Campy or Shimano compatible freehub bodies but Campy doesn't have to face the shame of having their own name on a Shimano compatible product.

alcjphil

Campagnolo feels no shame in seeing their wheels on an otherwise Shimano equipped bike
There is nothing second tier about Fulcrum wheels
Both wheel brands are available in Campagnolo or Shimano compatible versions

alcjphil

That is only true for some Shimano only compatible wheels, most Mavic wheels have had cassette bodies that were compatible with Shimano 11 speed cassettes for many years before Shimano 11 speed had been developed

HillRider

Nice to know. That wasn't always true.

alcjphil

It has been true for as long as Campagnolo has been producing their own complete wheels. One of the reasons why they created the Fulcrum brand is because of that mistaken belief that Campagnolo wheels cannot be used on a bike with Shimano, or more recently SRAM components