Its all gone mad and ive only been away a few years a never remember it moving this fast before
Blink in the 90's and you'd miss
headsets (threadless, and later 1.1/8
suspension corrected geometry
(followed by, linkages in various fashions, shocks that actualy worked, more travel, even more travel, more travel that actualy worked, less travel)
Tyres bigger than 1.9"
TBH bikes these days seem pretty stagnant, a few new standards (even BB30 is getting on a bit, hardly new), but nothing revolutionary, 29ers are getting on for 10 years old, reverbs are 3 years old, gravity droppers significantly older than that, 142 and 142+ are just refinements of 135x12.
I just view 650b as like new tyres, you wouldnt rush out and buy a new bike because it came with 2.4 Maxxis HR2's, and you only had 2.35 HR's. It's like knocking 1deg off the angles ona trail bike, or lowering the BB, incrementaly better, but not life changeing.