hi lee id change back to the 160 when mine are worn mainly because i can get 160s free! my mate races in f400(on fzr400)and his tyres only do one race weekend before there no good to him! there pirelli super corsa pro soft front medium rear,i get them for nowt cos i help him doing jobs etc but i know he sells them time to time on ebay so keep an eye on there as theres always someone selling them