Graphite coating the wheel surface.

[Parrot Racing]

I personally don't want to graphite the tread of the wheels, I think performance is better when the wheels are rolling rather than sliding down the track. But I know there are guys that will "soak" the whole wheel in a baggie of graphite for an extended amount of time, so you need to try both and figure out what works best for you.

Enrico-Parrot Racing

[ninjarabbi1997]

One study found some improvement using graphite on the outside of wheels on an aluminum track: www.pinewoodderbyphysics.com/pdf%20files/Lecture%206.pdf, but it also includes a warning (page 4).

And, if you are rail riding, you'll definitely want to at least lube the inside edge of the dominant front wheel.

[Barga Racing]

parrotracing said:

I personally don't want to graphite the tread of the wheels, I think performance is better when the wheels are rolling rather than sliding down the track.

Enrico-Parrot Racing

Parrot,
Not trying to be a smart a$$ or offensive but if coating your wheel treads with graphite is enough to make them slide down the track and not roll then you have some serious issues with your axle to bore friction
Most people don't want graphite on their treads because the theory is that it can allow them to slip side to side easier and therefore cause the dreaded death wiggle. We however have had the best times with graphite on our treads on all track surfaces.