When to chanage tires?

[apriliaman]

ive used a set of tires up to 3 weekends and thats doing 6 races and practices a weekend,my times maybe 1 second slower on the sv650.pirelli thats what i use.

[Ducmarc]

put mine on at race of champions ran homestead twice moroso once and jennigs once all 2 races plus 1 full practice day for each weekend [got to love lightweight] and these are bridgestone slicks  they are not the best sticking tire new but think they take more abuse with the tire warmers and time it the garage so they give me good grip for a long time but not cutting edge grip for the unlimited tire budget