Originally Posted by dcoffey48

The shifters are 10 Speed triple (6603), The Cassette and chain are 9 speed. It works fine as long as I dont try to use the small chain ring and the smallest 2 cogs or the large chain ring and the largest 2 cogs. The derailleur does has enough travel to hit all the sprockets and the indexing works just fine with the 9 speed double.