Just got my supermoto rims yesterday! there gold talon hubs with morad spokes& polished rims and dunlop 208 tires,ready to bolt on minus rotors and sprocket which brings me to my question. what is the smallest rear sprocket i can run without mods? i rode it today and its way to slow on the street even with the 15 tooth front sprocket. my bike is still a dirt bike but when i want to ride any distance on the road i don't want to cook my dirt tires so i want a fast change. i am going to run stock disks if any body has disks and a sprocket they want to sell let me know!