I would expect allot lot of wheelying and more speed than the pede can handle anyway. I dont really think there is a need to stick a larger pinion on there simply because the pede is not designed to be a speed demon. First and every time you put a lil bit of steering input into it while running at any kind of decent speed it will just traction roll.
Just speaking in my experience of high riding light weight electic vehicles, i never have owned a pede. Especially one with a brushless/lipo setup.