hi i have a xtm racing xcellerator and when i start it up and hit the gas it doesnt go anywere it moves a lil bit when you give it steady throttle though its not the spur becuase i looked at it and its perfect and i replaced it does anybody kno what it is plz help

The engine revs up fine? Is the clutch bell spinnnin? It sounds like the clutch shoes are shot. It would be easy to see if its the spur because you would see the clutch bell spinning, but not turning the spur. Look into it more and fine out where the power is lost.

check your diff, it could be loose or needing to be rebuilt.