Replacing 7 speed freehub body with 8, 9, 10, 11s freehub. 3x7 to 2x9 or 1x11 drivetrain upgrade.

If you want to upgrade your bicycle with a more modern drivetrain, like 2x9, 1x10 or 1x11, there is a chance, that you won't have to replace the rear wheel or the hub itself. In some cases replacing a Shimano 7 speed freehub body to 11 speed will be a quick solution. You might need to use a longer axle too. The tool you'll need: cone wrenches 10 mm Allen key pretty good toolkits (optional) 0:00 two wheels 0:18 our task 0:37 removing the axle 2:15 freehub body removal 3:07 all parts for 7s 4:02 all parts for 9s 4:19 installing new freehub 4:55 all measurements 6:15 QUESTION