hey finally bought me a couple brushless systems put a mamba max pro and a sensored lrp 4.0 turn motor in my frog wow way too fast! hadda dumb in down like hell to work but the mamba quit sending a signal to the motor. What the hell. time to send it in. So i went and bought a traxxas velineon system and a 2500mah lipo running a 20tooth pinion on 2.2 truck tires. Damn this thing is a blast! had to put a wheely bar on it cause the front keeps wanting to pick up even when im applying no more throttle. the only thing i added for strength was updated dogbones (i gues cvds are better but i couldnt find em) the was some upgrades when i bought it off ebay but im not sure what. But for sure this thing is a blast! even in training mode! I didnt post pics cause most know what a frog looks like, but i will if you all want to see.