(1) In race mode when you hit the rivet's hold the thumb stick back! this enables you to go even faster over them.
(2) when you are going down hill and you hit a JUMP pull the thumb stick back for bigger air and more distance.
(3) when you are going up hill just before you hit it, dab the thumb stick foward's then as you leave the jump hold the thumb stick BACK until you get to peak height. this way you can over take people in the AIR or just to gain a further LEED.