My wifeís bike has this awful gear indicator that she would like to take off. It seems as if I could just remove that black screw in the 6 o clock position and remove the cable that goes to the indicator. Iím hesitant to do that because Iím afraid that Iím afraid I might open a Pandoraís box of springs and things and screw up the actual gear shifting. She doesnít need the indicator but does need to shift. Advice appreciated. Thanx.