What is the difference between different level Campag Ergo shifters?

£100 for an axle? You my friend were well and truly had on that one - They are only £50 RRP for the most expensive ones....

Who charged you that extortionate amount?

Well, not Xenon and not the new Athena. But yes, you could theoretically buy Athena shifters from 2010, replace the levers and get essentially the same shifter as 2010 Super Record. But practically why would you though? As I said the difference in weight is less than 10 grams.

And spare parts are EXPENSIVE. The problem is that we have been spoiled by large online retailers and their deep discounts. But most don't do spares. You have to go through your local Campag dearler, who goes through the national distributor, who will charge exactly MRRP since spares are such low volume items. In the past three years I have paid about £40 for a Shimano disc brake master cylinder cover (a tiny bit of plastic with a rubber gasket and two screws), around £50 for a Shimano hub cone and locknut, and just over £100 for a Campag alloy hub axle. In my case it was a little cheaper and a lot less hassle than for example rebuilding a wheel with new hub. I can only imagine what Campagnolo would want for Super Record levers. But why would you do that to perfectly fine shifters for the sake of 10 grams and some lettering?