Hot damn! In the 90's I worked with a kid (then in his teens) who raced flat track, and had a Z50 that he'd done a bunch of performance mods to. All the guys at the shop had small bikes for Saturday "flog-patrol" sessions, as we called them. We'd set up a supermoto track out back (of sorts) and race. That kid dominated "flog-patrol" EVERY Saturday, even tho he was competing against bigger bikes. I had an old XR 80 with really old CR forks and shocks, and that kid lapped me like nobody's business. I shudder to think what he would do with that "Gromlin!"