Joined: Jul 2015
Posts: 7,465
Likes: 3,281
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
why go to 11 cogs in the rear? there is no real world advantage, and you will need to change your entire drivetrain and the shifters too... even the front chainrings and crankset will need swapped out to use the 11 speed cassette....
my advice... DON'T Do It! Fix what you have, and RIDE MORE.