38.7 - 38.9, according to my computer. 2015 K1300s motorsports, 28,000 miles. Pirelli tires throughout, currently the Angel GT II.What sort of mileage does everyone get for their riding style?
Every now and then I reset my mileage, but it always ends up back around 39mpg. I've not seen how low I could get it on a 'spirited run', but I have seen the high end.
If I hold steady at 55mph in 6th gear, I'll see 50.0 mpg. I've never averaged that. On a long road trip my mileage rises into the mid-40's, depending on the type of driving. Usually 43-44. Around town I'm gassing up at 180 miles, but on the road I often get 240, if I'm not doing 100mph.
So it's city driving that pulls down the mileage for me. My type of city driving isn't stop-n-go creeping along, it's more freeway and 4-lane streets. If I got across town on the bike, it will be 50-75 miles in each direction often around 85mph. In traffic I'm described as 'aggressive' by non-motorcyclists. I like 5-10mph faster than the flow of traffic. 85mph is my go-to comfortable speed, and there are a lot of roads around Phoenix where you can drive that speed if you are on the edge of town.
Another data point. I got 2700 miles on the original M3's, though I could have got to 3000 at least. Since then I've been getting about 4500-5000 miles on a set of Angel GT's, flat-spotting in the middle of the rear.
I've also got a booster switch, but it made zero difference in my mileage.
I run 38/42 psi.