campag cassette buying advice

ricktabor1

Hi,
I'm quite new to the campg stuff. I need a new cassette for 10 speed veloce groupset, but I don't know what to get. I got a removal tool so the cassette is off - the sprockets are seperate with spacers, and they have uniform notches to fit the splines except for one which has a step in it (like an L shaped notch).
I took a photo of the freehub.

http://s876.photobucket.com/user/rickta ... 5.jpg.html

I've seen one on crc which is ultra drive. Is this right?

Calpol

Just get any veloce cassette. there is a fair range and they cost about £32. You can only put each sprocket on one way but make sure you don't mix up the spacers as they are different widths.
http://www.ribblecycles.co.uk/sp/road-track-bike/campagnolo-campagnolo-cassettes-campagnolo-10-spd-veloce-cassette/campcass450

You'll get another 12% off if you are quick

ricktabor1

Thanks calpol. Much appreciated.
I didn't realise that about the spacers either - glad you told me. Just out of interest, are the spacers wider at the small sprocket end or the larger sprocket end?

Calpol

ricktabor1 wrote:

Thanks calpol. Much appreciated.
I didn't realise that about the spacers either - glad you told me. Just out of interest, are the spacers wider at the small sprocket end or the larger sprocket end?

I dont remember but you can find the info on the net. I got two cassettes mixed up at one point and had crappy shifting until I realised what had happened.

http://branfordbike.com/page.cfm?pageID=60

ricktabor1

Thanks again. That's really useful stuff.

I must confess that I am slightly confused cos I'm sure my 10 speed cassette has uniform width spacers, all perfect circles too (no real distinguishing shapes or marks), however I will go and check that as soon as I get chance.

Thanks again.

gfk_velo

ricktabor1 wrote:

Thanks again. That's really useful stuff.

I must confess that I am slightly confused cos I'm sure my 10 speed cassette has uniform width spacers, all perfect circles too (no real distinguishing shapes or marks), however I will go and check that as soon as I get chance.

Thanks again.

Genuine Campagnolo 10 & 11s cassettes are differentially spaced across their widths - occasionally we see "pattern" cassettes from third parties that aren't and some of them don't shift very well.

The reason is that Campagnolo shift levers recover, apart from on the 1st click, the same amount of cable on each click. In all derailleur systems, though, the exact angles the chain has to move through across the width of the cassette varies according not only to how far the sprockets are apart, but also in order to make the shifts reliable under load. Part of this can be accommodated in the rear derailleur itself, part is dealt with in the cassette.

Shimano 10 and 11s levers recover slightly varying amounts of cable depending on which click you are on - it's two different solutions to the same problem.

The changes in sprocket spacing in a 10s cassette are dealt with in the built-in spacers on the top and second to top sprockets and in (usually only one) intermediate spacer(s), depending on the ratios of the cassette and how many of the sprockets are bound together on a carrier.

All the spacers are letter-referenced and the key to the references, as well as the arrangement that is used, can be seen in the spare parts documents at http://www.campagnolo.com/jsp/en/doc/doccatid_3.jsp

HTH
Graeme
Velotech Cycling Ltd
Campagnolo main UK Service Centre