hi can anyone help me please

[bigtrev]

I am running a sx2 with a speed passion gran trusmio 2 speed controller and a x12 6.5 lrp motor but it keep getting motor very very hot gearing is at 81 spur and 19 pinion does this sound right

thanks

[rondoolaa]

....

[Shaun 'TheSheep' Atkinson]

You want to be running a 22 or 23 pinion really.