Headaches and migraines: Vision, vertigo and dizziness. The symptoms and discomfort from migraines can go far beyond excruciating head pain. Many people who get headaches, especially those who get migraines, also experience vision problems, dizziness and vertigo.
Shift your front derailleur into the middle or smallest ring, then wind your rear barrel adjuster in fully clockwise, then out one turn. Release the cable mounting bolt on the back of the derailleur. Step 2. Pedal gently, and push the derailleur until the chain moves up to the second-smallest cog, then stop pedaling.hift the front gears to the smallest ring, and the back gears to the largest cog. Fully wind in the low adjust screw. You should complete this procedure with a slack gear cable, so you can be sure that cable tension isnât overriding your low limit setting.
Shift into the EX cog. Adjust the B-limit screw so that there is a 5-6mm gap between the upper derailleur pulley teeth and the teeth on the EX cog. If you are unsure how to adjust your B-limit screw, consult your derailleur owners manual or visit your local bike shop.