I guess it depends how long it'll be laid up for. Mine lives outside and over winter probably gets used once a month or so, more to keep the battery tip-top than anything else. My theory, rightly or wrongly, is that the tyres are strong enough to withstand speeds of 180mph+ so they can cope with standing still for a month at a time without deforming.
6-12 months might be different though, although even then I reckon a Cup2 would be absolutely fine if at the correct road pressure.
6-12 months might be different though, although even then I reckon a Cup2 would be absolutely fine if at the correct road pressure.