Joined: Jul 2015
Posts: 7,236
Likes: 3,143
From: NW Oregon
Bikes: 1982 Trek 930R Custom, '91 Diamondback Ascent w/ XT, XTR updates, Fuji Team Pro CF road flyer, Specialized Sirrus Gravel Convert, '09 Comencal Meta 5.5 XC, '02 Marin MBX500, '84 Gitane Criterium bike
"New", How "new", in weeks, months, "New" to you, but actually used?
and i bet the False shifts occur when you backpedal.
Is the bike leaned over when the false shifts occur?
what type of chain lube are you using? how often?
Can you see any bend to the derailleur, or are you just speculating?