What ever you do stay away from Axial. For truggy get the GO TECH .25 6 port race. Its faster than all them .28's 30's and .32's. And for buggy a nice .21 i agree with Integra. You could also go with .21 for truggy too I ran a GO TECH .21 5 port and was just as fast as everyone else. the .25 I suggested is just if your low end grunt happy and it gets good runtimes too.