Yes the .21 has plenty of power for the truggys and that .24 is going to be a monster more power than you would ever need and a whole lot of fun ..either motor is fine for the truggys if you run on a smaller tight track i would say .21 but if you race or play on a big track like 200 ft plus then the .24 is the way i would go, both are great motors you cant go wrong with either...