How To Adjust Rear Derailleur Mtb. Shift the SRAM or Shimano rear derailleur shifter to the smallest cog hardest gear to release the most cable. Rear derailleur adjustment is dependent on just three things.
Look for the high and low adjusters on the derailleuroften marked with an H and an L. It is a little tiny piece of your bike at first look you wouldnt even see it. If the chain does not move to the smallest cog turn the H-limit screw a few turns counter-clockwise.
Just a quick recap of the points on how to adjust the rear derailleur on a mountain bike as discussed above are.
If it still does not shift outward turn the barrel adjuster on the derailleur body clockwise a few rotations. If its still not shifting outwards turn the barrel adjuster clockwise a few rotations. They are usually located by your brake levers brake calipers gear levers and derailleurs. The majority of rear shifting problems can be solved with basic adjustments to the limit screws and index setting of th.
