2018 DCT base model with original BATTLAX A41s and 6500 mi on the ODO. Because front tire is approaching end of life would the rear necessarily be close behind, or not? - wondering, because being lightly ridden, looks like rear could go a few thousand miles more. Debating ordering a replacement front A41 to see out the apparent remainder of life in rear, or calling it good for this set and starting over with TMs. Yes, I do appreciate that folks here might retire a set of tires after just a few hundred miles but excluding performance or characteristics preferences, at 6500 mi and four years on a machine, would you retire a tire even if tread looked acceptable?