How do you do it Max? With your right hand behind your back?
1) Road condition- road conditions matter a lot and vary a lot around the country.
2) Road type- since I live in a major metropolis, perhaps around 2/3 of my mileage is slab (Interstate). It takes quite a while to get far out enough to have enjoyable roads.
3) Weight- I only weigh 137 pounds (undressed). I only ride solo, ever.
4) Spin- traction control always on and I very rarely slip or spin the tires. ABS
5) Pressure- I try to ensure I am always at 42PSI.
6) GT- I use the GT not the non-GT. Not sure how much that matters, though.
Other than that, who knows. But by no stretch of the imagination am I "slow", however, there is only so much excitement on busy slab or when following slower bikes.