So, i was trolling around another forum and found this about tyres - topic based around a 600 supersports. "You can run whatever compound you like as long as the tyres are geometrically compatible. There are lots of people who will tell you its a no-no etc etc but many are regurgitating something they heard off someone else who's girlfriend read about it on a napkin at the hairdressers... and the only thing that shouldn't be used on a "sports" bike IMO is a 120/60 on a front or a 190/50 on a 6" rear..... You should always use a 120/70 front and it's geometric match, which is a 190/55 on 5.5" rear (600's) or 200/55 on a 6" rear (1000+). Anything smaller is more of a touring friendly commuter set up." Thats an interesting point. Bikes are built to a cost and budget. Is a 180 is part of that compromise? Yes? Does anyone back this statement saying that a 190/55 or 200/55 would be a better option..for weekend junkies/track day hacks? So, next time i need a tyre should i be changing up??