Season 4 of Grit and Grind: A Rockstar Energy Husqvarna Factory Racing Series premieres today

Follow Malcolm Stewart and RJ Hampshire throughout AMA Supercross 2025 in four-part docuseries

Grit and Grind: A Rockstar Energy Husqvarna Factory Racing Series is premiering its highly-anticipated Season 4 today – Thursday, May 29th – in the first of a four-part docuseries that follows Malcolm Stewart and RJ Hampshire through the entire 2025 AMA Supercross Championship.

With Stewart back to his best onboard the Husqvarna FC 450 Factory Edition in 450SX and not only challenging for podium positions and ultimately achieving a first-career premier class victory in Tampa, Grit and Grind documents every step of the popular 32-year-old Floridian’s inspirational journey this season.

As for Hampshire, faced with adversity after clinching the Western Division crown of 250SX last year, the 29-year-old resets his focus on the Eastern Division this time around and once again – despite ongoing setbacks along the way – finds himself in title contention equipped with the Husqvarna FC 250 Factory Edition come Salt Lake City’s dramatic final round of the season.

From the test track, to podium celebrations, and everywhere in between across all 17 rounds, Grit and Grind brings fans along for the ride with exclusive, never-before-seen behind the scenes access that will have you cheering throughout every lap, every corner and across the finish line when the final checkered flag flies.

New episodes of Grit and Grind will be released weekly over the next four weeks, as the SuperMotocross World Championship (SMX) continues its second stage, with the AMA Pro Motocross Championship currently being contested across an 11-round duration before the SMX Playoffs and Final commence this September.

Exclusively catch each episode on the Husqvarna Motorcycles YouTube channel, with Season 4, Episode 1 of the Grit and Grind: A Rockstar Energy Husqvarna Factory Racing Series available to watch now.