I have been riding my new bicycle for the past week with my rear derailleur not properly adjusted. I am pretty sure it's a problem with the b screw since my hanger rides too close to the cassette and makes a convulsive click. It only happens when I am on the lowest gear. what are possible solutions to have my rear derailleur ride correctly? I have already tried flipping the B screw as was mentioned in a thread I found regarding similar issues but it did not give enough adjustment. Are there any other possible problems I may have that I am missing?
By the way my rear derailleur is a Shimano Sora