I know every 1 says you should run with your standered MAXX tires on with the tread as arrows pointing forward but i decided to run mine backwards on my SMAXX (just the back tires) and while racing my buddy today who has got a TMAXX (all tires on pointing forward) i found i had far more grip whatever we were driving on tarmac,grass,gravel and mud.so as expected we did it to his TMAXX and now we can't stop laughin for pullin wheelies.