I would recommend Zinn anyway as it's always a useful reference point.
Your session with PVT
![Shocked :shock:](./images/smilies/icon_eek.gif)
will teach you a lot, and it's always easier seeing something in the flesh
![Shocked :shock:](./images/smilies/icon_eek.gif)
but if you look [url=http://www.addiscombe.org/members/phpBB2/viewtopic.php?f=3&t=7121]here[/url] then you may find something that helps - the Park tools site is handy with good pictures. Manufacturer's sites also have useful downloads for fitting and adjusting their kit, well the Campag one does anyway
![Smile :)](./images/smilies/icon_smile.gif)
.