Whats size pinion should I get?

[Trick440]

Any guesses on what gearing I should use.

Its a Revo, stock diff. gears, locked in std ratio 2nd gear, 54t spur, current pinion is a 15t.

2000kv Neu 1512, 14.8v

The speed calculator says the max speed is 23.5mph. If I went with a 22t pinion it would be up to 32mph. Is this to big or small... I'm trying not to experiment to much, each try cost about $15 bucks.:024: