There are two Campy "Record" 10 speed chains... The "Ultra" is usually
$50 online and the regular one is usually $40 online... Last week
SuperGo had the regular one for $35...

The only difference between the chains is the Ultra has hollow pins and
drilled side plates... The Ultra is 20 grams lighter...

http://www.campagnolo.com/groupsets.php?gid=1&cid=6

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Mike (Xyzzy)