Michelin Power One questions

[cheesemethod]

My SV650 i bought recently came with a set of Michelin Power One fitted. I dont know anything about these tyres so I thought I'd get some thoughts from those who have used them before. They still have about 3-4mm depth left in the 'grooves' and there doesn't seem to be any cracking or perishing in the sidewalls. I dont know how many heat cycles these tyres have had, is this a concern? They look fine to me, but my only experience is with normal road tyres so i just want to make sure these are still safe to do a trackday on. Thanks.

[Marmoot]

Power One has variants for track/race and one variant for street/track.
So, not sure which one you have (and sorry I'm not sure how to find out from the tyres itself either).

I guess if it is the street/track, you can virtually ignore the heat cycle factor.

Btw, they're good tyres for the street.

[RDjase]

http://www.youtube.com/watch?v=V4RQttXXtos

Couldnt find out what the different codes/markings are between the two compounds,