i used progressives, i am 180 and the girl is around 130. they worked amazing and could not be easier to install. just put them in and use the stock spacers. not sure how the ikon's are but i would not hesitate to use the progressibes again

(Former)05 BA tbike pipes, ai removed, Freak, mikuni hsr 42's, 904, ported/polished head, 1mm oversized valves NOW-2010 silver and black tbird