Originally Posted by jimmuller

One day, probably in the next life, I would really like to understand Shimano's terminology. The Tri-Color built around the 600 used a Deore or XT RD, or maybe an RX100 which came out with the 105, except that the older XT would be preferable maybe, if you don't use an Exage or Ultegra or 7400 or 6500 or 6501 which is presumably one better than the 6500, so where does the 500 of anything fit if it is 305 better than the 105, or should that 7200, I lost count. Velobase doesn't help. I just can't speak that language.

How many Shimano employees does it take to invent a new name? It's unknown, they haven't stopped yet.

Oh, and I forgot the deerhead and the arrowhead and the Arabesque, not to mention the 600 and the Dura Ace.