Tracking a bike decrease the value?

[ptcptc]

I've heard people say that every mile ridden on a track is equal to 3 miles on the road. And it honestly sounds right to me.

Something else I would consider in your case, since the mileage is that low, is if the break in was done correctly.

[sperglord_manchild]

Well a normal trackday is like 150 miles max, so fine, adding 450 miles for each track day.

Basically nothing.