Removing a 90’s Campag Chainset

fignonFlyer · Nov 14, 2017

So, I’ve taken delivery of a bike with a 90’s Campag Chainset. It has a 7mm Allen bolt in the centre of a ring with 2 small holes either side.
The 7mm Allen key only turns a short way, so i’m guessing a special tool may be required.
My experience of Campag is very limited over and above 80’s Record/Super Record, been using Shimano ever since

kingbling · Nov 14, 2017

Sounds like a self releasing bolt similar to shimano, keep undoing it and it will pull the crank off for you.

fignonFlyer · Nov 14, 2017

Hmm, I
The Allen key will move maybe half a turn, the hex hole looks a bit rounded, so not sure I’m going to get anything moving before the Allen key just spins around inside the hex hole

kingbling · Nov 14, 2017

You could try an imperial size Allen key or a torx bit but to take off the cap use a pair of circlip pliers.

hamster · Nov 15, 2017

And the cap has a left hand thread, unscrews clockwise. It's so it doesn't inadvertently unscrew when undoing the crank bolt.

pigman · Nov 15, 2017

kingbling":2twgqe35 said:
Sounds like a self releasing bolt similar to shimano, keep undoing it and it will pull the crank off for you.

this
keep turning the allen key anticlockwise - it will be stiff, but should draw the crank off the axle ... unless its seized on, then it becomes a project

fignonFlyer · Nov 15, 2017

Thanks all, had a real workout getting the damned thing off.

Removing a 90’s Campag Chainset

fignonFlyer

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