If you can count him as a grom still, Ayumu Hirano has to be the top rider in this list. He’s professionally hammering most of the pro pipe riders out there at the moment and this year he took 2nd at the Aspen X Games, despite only being 14!

We’re hyped to see what he comes up with in this competition season as we get the impression there’s a whole lot more to come from Ayumu. If you’re ever even close to the same level as him, get in touch, we’ll send you a t-shirt…

Grom Fact – As a 12 year old, Ayumu allegedly qualified for the final 10 at the US open before the judges realised he was a junior.

This is just a selection of groms and we’re sure that there are a tonne that shred harder than half the adults on the hill. If you have suggestions, drop them in the comments below.