Something Failed, let’s find it! Transmission Analysis.

Hard on tyres it must rip them apart, what mileage are you getting 4-6000?

Yep, that's about right.
Just over 4K Miles was the worst, or best riding
Or up to 6K Miles, that must have been in the Winter.
I see Guys getting over 10K Miles and wonder how on Earth? Concrete Freeways ? ***** footing around.
Oh that's right, we're not aloud to say *****, I'll just have to say "Catting" around

The up side is there's plenty of go hard grip.
 
Just over 4K Miles was the worst, or best riding
The up side is there's plenty of go hard grip.
And your commuting run is really short.
There was some experimenting close to where I work with some different surfaces - to avoid ice based accidents. One was so aggressive that Taxi Drivers would take a different slightly longer route and not charge clients the extra time/mileage - just to avoid the tyre wear. This was before I had the R3. When teh bus company started to complain - they had to resurface again. Reduced tyre life by half.