Maugust789 the Tour X is firmer, 4 pc. vs. the Tour which is 3 pc. That is the main difference that I noticed. The X is not overly firm more in line with a V1x firm and Tour more on line with v1. Note that they have gloss, matte, and yellow options so pay attention when adding to the cart. The yellow is painted, fyi, so it has a bit of a different look to it. I kinda like it as far as yellow goes, YMMV.