By 1978, American motocross had become the arena for one of the most electric rivalries in motorsport: Bob Hannah and Marty Smith. One was raw firepower — aggressive, unfiltered, relentless. The other was fluid precision — stylish, composed, almost effortless. Their battles had reshaped the sport, redefined technique, and captured the imagination of an emerging motocross nation.

But every rivalry has a last chapter.

The Last Duel traces the final year of the Hannah–Smith rivalry, a season marked by brilliance, breaking points, and the harsh realities of a sport that gives and takes in equal measure. We explore what happened after 1978 — the injuries, the shifts in dominance, the new faces entering the sport, and the ways each rider tried to find their place in a rapidly evolving motocross landscape.

From there, we widen the lens.

What becomes of a rivalry once the racing stops?

How do competitors carry those battles — physically, emotionally, psychologically — into the rest of their lives?

And how do rivalries continue to shape the DNA of modern motocross and supercross?

From Carmichael–Stewart to Tomac–Roczen, from Webb–Ferrandis to the quiet rivalries playing out every practice day, this episode reveals the mechanics of competitive fire: how it forms, how it burns, and what happens when the spark fades.

Rivalries are the engine of motorsport.

They push innovation, sharpen skill, and create legends.

But they also end — and what remains after can be just as powerful.

In Part II of Some Kind of Science, we close the book on one of the most influential duels in motocross history… and uncover the deeper truth about why rivalry matters.

In the spring of 1976, the motocross world changed forever. At a dusty track in Northern California, a polished champion named Marty Smith met his match in an unknown Yamaha rider with a firestorm riding style — Bob “The Hurricane” Hannah. What happened that day at Hangtown wasn’t just a win or a loss. It was the ignition of one of the fiercest rivalries in motorsports history.

Racing the Curve is a documentary-style audio series that takes you into the ruts, roost, and rivalries that shaped American motocross. With immersive sound design, vivid narration, and interviews from legends who lived it, we bring you to the edge of the gate and into the heart of the storm.

This is more than sport. This is storytelling on two wheels.

Some Kind of Science: Part 1 plunges into the fiercest rivalry motocross has ever seen. Marty Smith—Honda’s polished California icon—was the face of the sport. Bob Hannah—Yamaha’s sand-slinging wild card—was its rebellion. In the mid-70s, these two titans collided, igniting a battle that would change everything. From the dusty hills of Hangtown to the roaring chaos of the Houston Astrodome, we trace the rise of Supercross, the marketing machine behind the mayhem, and how a rivalry became a business strategy. This is where the storm begins.

This premiere episode of Racing the Curve is told in immersive documentary style, blending historical reporting with visceral sound design to take you inside the moment. Featuring rare audio, expert interviews, and narration that brings each story to life, this isn’t just motorsports history—it’s a front-row seat, bringing stories to life for you to experience.