Has anyone tried this mod on their ST? The standard gearing (15 tooth front sprocket) is a bit high, sometimes I have to slip the clutch in traffic and so I bought a 14 tooth sprocket to reduce the ratios. It works well, but I'm wondering if anyone has done this mod and had any negative effects. fi. The plastic wear piece on the top of the swinging arm seems to be wearing away faster than before I made the change. Anyone have any comments?