A.Duc.H.Duc. said:
yeah the 150 rear/110 front is how sport bikes all used to be back in the day, i.e. 80s and early 90s. So you can get the tires no problem, a lot of people don't have them sitting on the shelf anymore though.
Over here up until a few years ago, 250cc Production Racing was pretty big - RGV250s and Aprilia RS250s - the rules required them to run on street tires, so there was quite a serious choice available in the 110/70 and 110/80 fronts and 150/60 rears in super sticky compounds...
Unfortunately with the two stroke "smokers" going the way of the dodo, everyones moved to 600cc production or 600 supersport racing, so the club racers tire sizes have gone up to 120 fronts and 160 or 180 rears. Thats good in one way for my little 750cc Monster, but it really can't use all that edge grip that tires like Rennsports or 009's have to offer, its grinding away headers at the front and folding up footpegs and grinding my low mount cans at the rear well before sticky tires start running out of grip - it'll happily do that with an 020 on the rear and I can get 15 or 20,000km out of one of them...
big