INDEXING BIKE GEARS FUNDAMENTALS EXPLAINED

Shimano 12 speed: When setting up 12 pace Shimano drivetrains there is a line on the back again of your derailleur as shown in the initial picture. Change into the 2nd to largest gear, line up the edge of the largest gear with the line on the derailleur to acquire the proper B-pressure.If these screws are misadjusted, the derailleur is probably not