Changing cassette

[jim haseltine]

A picture of the new cassette showing the splines would help too.

 

[avalonian]

The largest cog

 

[zerogravitas]

Looks like a Shimano cassette to me, shallower splines than Campag (of whatever year/speed).

 

[avalonian]

I think you might be right

 

[avalonian]

Just checked E Bay seller sent wrong cassette
Ordered a Campagnolo one from Spa

 

[avalonian]

All done with correct cassette. Thanks everyone for your help.