cool!!!!!...i like it...whit the oldschool bullet bros chain tensioner........realy bad chain tensioner...and i know it......lol...lose 3 rear derailleur whit this.....lol

 Nice pic ! Who could have believed a few decades ago that only a few degrees less or more make such a difference. I know there is a suspension matter too. But in my opinion, the main revolution are in angles !

 1994 - 26"
2013 - 26"

another example,
do you really think it took 30 years of MTB to realize that we needed bigger wheels??
look, everything changed, except the wheel size!

 30 years, because they started doing mtb bikes that time