I have a traxxas 2.5 it got slow and lost compression so we got a picco/ofna
.21 ans i have hotbodies pipe motorsaver aircleaner proline body wheels tires front and rear aluminum skind and servo skid the wing moutnand wing and a 51 chey truck body and a crowd pleaser body and integy piggy back shocks but there very soft its has 50 weight oil im them and the 3.3 wheelie bar. hope you love it.