At what juncture does a dirt bike accumulate too many hours? What constitutes excessive hours, and what potential issues might arise? Let's consider a two-stroke model with over 200 hours on its clock, single track ridden only, but with only 40 hours on the top-end rebuild. Would this be a bike you'd decline, or would you consider purchasing it if the price aligns with its condition? If you decide to proceed, what would be a reasonable offer?