I ride a Schwinn Meridian 26 that I converted to electric a few months ago. I am having a hell of a problem trying to get the front wheel brakes to fit right on both sides of the rim. The tire with the conversion kit is the same size as the original. It worked fine BEFORE the conversion. I can get one side to contact the rim but the other is too high and contacts the tire. I cannot lower the pad any more. Is there a longer brake arm that I can use? Thanks for any help.