I found with the TT that I completely trashed my tyres at Brands. it wasnt a really hot day and I didnt ride like Haga (until the end
)
I did an Inters and wasnt the fastest out there although I did have a moderate shuffle on. Sam will vouch for the fact my rear tyre was completely fkked. It had changed compound to all intents and purposes. I had road pressures in them. They werent knackered thru suspension, purely thru the fact the pressures were set for road, they were too high.
I suppose it depends on how youre going to ride (and how youre going to cool your tyres down) as well.
A road ride is fast and slow, lights, junctions and traffic causing you to slow, keeping the temp and pressures down, on a track youre only doing one thing, riding. corners are smoother, track is better than the road and the average spoeed compared to on a road is liable to be higher, and with it, the amount of heat in the tyres. Youre going to circulate and those temps (and the resultant pressure) is going to be higher.
Dropping the pressure when cold
by a bit will help the tyre to cope with that.
If you keep it on road pressures (higher than track pressures) when they get hot, the pressure will rise above normal. That im sure of.
Most superbike / sportsbike / sports tourer tyres
are now track orientated. theyre designed partly with the track in mind and as such will expect (if a tyre can expect?) to be lowered for track use. Thats why the R6 cup run lower pressures yet use road tyres.. as do other cups.. They tend to only run 10 mile races (dunno about R6 cup) and take less time than 30 mins. I guess juggling one against the other.. time versus 'thrashedness', they equate to about the same.
..This could be interesting!
Put me in the 'Lower the pressures' camp.