How To Adjust Tension On Rear Derailleur. Every rear derailleur has three adjustments Cable tension which you adjust by tighteningloosening the cable manually or by using the barrel adjusters limit screws which prevent your chain from falling off the top or bottom of the cassette and the b-index which determines the angle of the derailleur against the frame. Chain is properly installed and the right length.
It also provides a degree of chain tension assuming. That is loosening the a tension has the same effect as tightening the b tension. This puts the derailleur in a relaxed position which makes for easier adjustments.
2 sets of chain limit screws symbol H and L and one screw to adjust the tension of the rear derailleur.
The guide pulley keeps the. It also provides a degree of chain tension assuming. There are three basic adjustments that can be made to the rear derailleur to help it perform as it was intended. Spacing between derailleur pulleys and cogs.
