Originally Posted by
Andrew R Stewart
No, Syncros were down tube mounted levers. Usually on braze on lever bosses. They were Campy's initial response to the Big S's SIS levers, late 1980s IIRC. Syncros were known to not index well. But as the rest of their drivetrains were not yet indexed optimized and most were from pre indexing designs that was no surprise. Andy
Campy really had a great idea with Syncro. Match the lever insert to the rear derailleur and freewheel, and it was supposed to index. Didn't work then, because of too many variations in parts specs.
Now?
it would work perfectly, since there's only a few standards to work with, and they're actually internally consistent. Microshift could offer the appropriate inserts and have their stuff index perfectly with every combination of parts made since the mid 1990s. You could even have spares on hand, in case the only rear wheel you could find was SRAM, and you have a Shimano rear derailleur and Campy shifters.
--Shannon