Originally Posted by
STLNLST
It shouldnt need replacing if that's all you've run it and the temps are legit. If you get a chance take the rotor out at measure it. If it's 12.3mm that would explain your lack of punch.
can you explain what you mean by 12.3 mm? is that the rotor diameter i'm guessing? were those older rotors or something? I bought my motor only a few months ago. Are there different diameters?
thx dude!!