Since speed is relative, even before starting the motors of your Groms, you are traveling just a bit less than 1,000 MPH relative to the poles of the earth. Add to this, about 66,000-ish MPH relative to the Sun, which is traveling over 480,000-ish MPH relative to the center of our galaxy. In addition to these figures, our galaxy is moving over 1.3 million MPH relative to the "universe". Considering all these interweb facts, your Grom is cooking at over 1.8 million MPH through the universe with the kickstand down.
Ryan Andrews is an AMA badass who also happens to share the mass of a flea. (No offense to fleas.) There's nothing you can bolt onto a Grom legal or otherwise that would bridge the gap when suffering a few tens of pounds weight deficit as long as the lighter rider opens their throttle to the stop, let alone a flea-sized, AMA badass. Short of traveling though a wormhole.. though then you'd probably end up in a parallel universe, meet yourself, and annihilate each other. Figuring each rider weighs around 250lbs.. not really sure how much damage 20 exajoules all at once would do, but 4.78-ish gigatons sounds like a lot. :(
